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Percentage, date, salary, BMI, tip, and age calculators. Fast and private.
Calculate percentages, percentage change, and percentage of a number.
Calculate the difference between dates, add or subtract days.
Convert salary between hourly, daily, weekly, biweekly, monthly, and yearly amounts.
Calculate your Body Mass Index and see your weight category.
Calculate tips and split bills between multiple people.
Calculate exact age in years, months, and days from a birth date.
Focus timer with Pomodoro technique, session tracking, and sound notifications.
Full scientific calculator with arithmetic, trigonometry, logarithms, and calculation history. Keyboard support.
Convert between 30+ world currencies with a swap button and live conversion. Rates are approximate.
Calculate monthly payments, total interest, and view an amortization table for any loan.
Calculate mortgage payments with property tax, insurance, and down payment. Full monthly breakdown.
Calculate final price after discount or find the discount percentage from original and final prices.
Calculate width or height for any aspect ratio. Common presets for 16:9, 4:3, 1:1, 21:9, 9:16.
Precise stopwatch with start, stop, reset, and lap times. Millisecond accuracy. Keyboard support.
Set a countdown timer with audio alert. Quick presets for 1, 5, 10, 15, 30, and 60 minutes.
View current time in cities worldwide. Add, remove, and search timezones with live updates.
Set alarms with audio alerts and snooze. Support for multiple alarms running simultaneously.
Calculate daily calorie needs using Mifflin-St Jeor BMR formula. Input age, gender, height, weight, activity level.
Estimate CO2 emissions from flights, car travel, and home energy. See total footprint and tips to reduce.
Calculate compound interest with principal, rate, time, and compounding frequency. Year-by-year breakdown.
Calculate savings growth with monthly deposits, interest rate, and years. Visual growth chart.
Calculate income tax owed, effective rate, and take-home pay for US, UK, and FR tax brackets.
Track expenses by category and date. Monthly totals, category summary, and CSV export. Auto-saved locally.
Calculate return on investment, net profit, and payback period from investment cost and return value.
Random arithmetic problems with difficulty levels. Timer, score tracking, and streak counter.
Interactive multiplication grid 1-12 with hover highlights. Practice mode with random questions.
Pick which multiplication tables to practice (1-12). Timed quiz with score, streak, and wrong-answer review.
Interactive unit circle showing angles in degrees/radians with sin, cos, tan values. Click any angle to highlight.
Random binary numbers to convert to decimal. Timer, score, and difficulty levels (4-bit, 8-bit, 16-bit).
Calculate recommended daily water intake based on weight, activity level, and climate. Track glasses today.
Find optimal bedtimes or wake-up times based on 90-minute sleep cycles. Get 4, 5, or 6 full cycles.
Enter your birthday and see your exact age in years, months, days, hours, minutes, seconds — live updating.
Set a future date and see a live countdown in days, hours, minutes, seconds. Presets for holidays.
Convert your pet's age to human years based on species and breed size. Shows life stage information.
Add or remove VAT from any price. Supports 20+ countries with correct rates. Net to Gross and Gross to Net.
Calculate sales tax for all 50 US states. Enter price, select state, get total with tax breakdown.
Calculez la TVA en France : taux normal 20%, intermédiaire 10%, réduit 5.5%, super-réduit 2.1%. HT vers TTC et TTC vers HT.
Calculate UK income tax with 2025/2026 bands. Personal allowance, basic, higher, additional rate, and National Insurance.
Calculate your ideal hourly and daily rate based on target income, expenses, holidays, and working hours.
Calculate gross margin, markup percentage, and profit from cost and selling price. Or find the selling price from target margin.
Estimate your net paycheck after federal tax, state tax, Social Security, and Medicare deductions.
Calculate invoice totals with multiple line items, tax rates, and discounts. Multi-tax support for GST, PST, and more.
Convert between L/100km, MPG (US), MPG (UK), and km/L. Bidirectional fuel economy conversion.
Complete paper size reference: A0-A10, B0-B10, Letter, Legal, Tabloid. Dimensions in mm, cm, inches, and pixels at various DPI.
Convert between Pa, kPa, bar, atm, psi, mmHg, and torr. Bidirectional pressure unit conversion.
Convert between Joules, kJ, calories, kcal, kWh, BTU, and eV. Bidirectional energy unit conversion.
Convert between degrees, radians, gradians, turns, arc minutes, and arc seconds.
Convert between square meters, square kilometers, hectares, acres, square feet, square yards, and square miles.
Convert between mL, L, gallons (US/UK), quarts, pints, cups, fluid ounces, and cubic meters.
Estimate shipping costs based on package dimensions and weight. Compare carrier rates.
Calculate net profit, margin, and ROI with marketplace fee presets for Amazon, eBay, Shopify, Etsy.
Compare prices per unit across products to find the best value. Auto-ranking.
Calculate electricity cost for any appliance. Watts, hours, price per kWh. Common presets.
Calculate your ideal weight range using Hamwi, Devine, Robinson, and Miller formulas based on height and gender.
Estimate your due date, current week, trimester, and key milestones from your last menstrual period or conception date.
Calculate your max heart rate and 5 training zones: Recovery, Fat Burn, Cardio, Hard, and Max based on your age.
Interactive blood type compatibility chart. See who you can donate to and receive from, including Rh factor.
Log meals with calories and macros. Track daily intake against your goal. Saved locally in your browser.
Calculate straight-line distance between two coordinates using the Haversine formula. Results in km and miles.
Select two timezones to see current time in each and the difference in hours, accounting for DST.
Estimate flight time between two cities based on distance and average cruising speed.
Plan your travel budget: see local currency equivalent, tipping customs, and average costs for meals, transport, and hotels.
Calculate mean, median, mode, range, variance, standard deviation, quartiles, and more from a set of numbers.
Add, subtract, multiply matrices. Compute determinant, transpose, and inverse for matrices up to 4x4.
Solve quadratic equations (ax² + bx + c = 0). Get real or complex roots, discriminant, vertex, and axis of symmetry.
Add, subtract, multiply, and divide fractions. Simplify results and convert to mixed numbers.
Find the Greatest Common Divisor and Least Common Multiple of two or more numbers using the Euclidean algorithm.
Compare renting vs buying a home. See break-even year and 30-year total cost for both scenarios.
Calculate annual ROI, cash-on-cash return, and cap rate for rental property investments.
Calculate stamp duty or property transfer tax for UK, Australia, and Singapore with current rate bands.
Estimate your moving costs based on distance, number of rooms, and extra services like packing and piano moving.
Calculate the exact age difference between two people in years, months, and days.
Find your day of birth, zodiac sign, Chinese zodiac, birthstone, and birth flower.
Calculate your GPA on a 4.0 scale. Add courses with credits and grades.
Calculate weighted grades and find what score you need on the final.
Split bills with custom tip percentages and per-person breakdown.
Add multiple time durations together. Perfect for timesheets and project tracking.
Calculate weekly work hours with overtime, breaks, and estimated pay.
Calculate paint needed for a room accounting for doors, windows, and coats.
Calculate tiles needed for a floor or wall with wastage and grout estimates.
Calculate concrete volume for slabs, footings, and columns with bag counts.
Calculate wallpaper rolls needed for any room with waste percentage.
Calculate flooring materials needed for wood planks, tiles, carpet, or vinyl.
Calculate fabric needed for curtains based on window size and style.
Calculate fence posts, rails, and boards needed for any perimeter.
Calculate grass seed needed for new lawn, overseeding, or repair.
Calculate mulch volume in cubic yards and bags needed.
Running pace calculator with split times for any distance.
Estimate one-rep max using Brzycki, Epley, and more formulas.
Estimate body fat percentage using the US Navy method.
Calculate daily protein, carbs, and fat from calorie target and goal.
Convert steps walked to distance based on height and stride length.
Calculate calories burned for 30+ activities by duration and weight.
Calculate break-even point in units and revenue with price sensitivity.
Calculate startup runway from cash, expenses, and revenue.
Calculate Monthly Recurring Revenue with plans, churn, and ARR.
Calculate customer lifetime value from ARPU, churn, and margin.
Calculate customer acquisition cost from marketing and sales spend.
Estimate startup valuation using revenue multiples by business type.
Scale recipe ingredients proportionally to any serving size.
Convert baking measurements between cups, grams, and ounces by ingredient.
Calculate coffee-to-water ratios for 8 brewing methods.
Calculate pizza dough ingredients by style: Neapolitan, NY, Detroit.
Estimate blood alcohol content from drinks, weight, and time.
Tipping customs for 30 countries covering restaurants, taxis, and hotels.
Calculate recommended wire gauge (AWG) based on current, distance, and voltage drop. Reference table included.
Calculate the right resistor value for LEDs. Enter forward voltage, current, and supply voltage for series or parallel configs.
Calculate total capacitance for series and parallel capacitors. Also compute energy stored in a capacitor.
Decode resistor color bands to resistance value or encode a value to color bands. 4 and 5 band support with visual display.
Calculate total power draw for your PC build and get PSU wattage recommendation. Add CPU, GPU, RAM, drives, and fans.
Calculate how many plants fit in your garden bed based on square footage and plant spacing. Grid preview with common plants database.
Calculate how much soil you need for raised beds. Enter dimensions to get volume in cubic yards/meters and bags needed.
Estimate how much rainwater you can collect based on roof area and annual rainfall. Tank size recommendation included.
Calculate approximate daylight hours and sunrise/sunset times by latitude and month. Annual daylight chart.
Calculate your compost carbon-to-nitrogen ratio. Add green and brown materials to check if your mix is in the optimal range.
Estimate crypto mining profitability. Enter hash rate, power consumption, and electricity cost for daily/monthly profit.
Calculate Ethereum transaction fees. Gas limit × gas price in Gwei. Common gas limits for transfers, swaps, and mints.
Check if a number is prime. See its factors, prime factorization, and nearby primes.
Generate Fibonacci numbers or check if a number belongs to the Fibonacci sequence.
Calculate factorials up to 1000! using BigInt. Shows steps and digit count.
Calculate nPr permutations and nCr combinations with formula display.
Calculate any side of a right triangle using the Pythagorean theorem. Visual triangle display.
Calculate golden ratio pairs. Visual spiral and rectangle display.
Calculate square footage from length and width. Add multiple rooms. Metric option.
Calculate cubic footage from L x W x H. Volume for shipping, storage, concrete.
Input radius, diameter, circumference, or area — calculate all others. Visual circle.
Calculate triangle area, perimeter, angles, and type from sides and angles.
Calculate cylinder volume, surface area, and lateral area from radius and height.
Calculate sphere volume, surface area, diameter, and circumference from radius.
Calculate cone volume, surface area, and slant height from radius and height.
Calculate trapezoid area, perimeter, and median from parallel sides and height.
Calculate regular hexagon area, perimeter, apothem, and diagonal from side length.
Calculate ellipse area, circumference, eccentricity from semi-major and semi-minor axes.
Calculate Compound Annual Growth Rate from start value, end value, and number of years.
Calculate future or past purchasing power based on inflation rate and years.
Estimate retirement fund based on age, savings, monthly contributions, and return rate.
Calculate how long to pay off debt and total interest from balance, APR, and monthly payment.
Calculate down payment amount from property price and percentage, or reverse.
Convert cups to milliliters. US and UK cup sizes. Bidirectional conversion.
Convert milliliters to cups. US and UK sizes supported.
Convert tablespoons to milliliters and back. US, UK, and Australian sizes.
Convert teaspoons to milliliters and back. US, UK, and metric sizes.
Convert yards to meters and back. Includes common length references.
Convert meters to yards and back. Includes feet and inches breakdown.
Convert stones to kilograms and pounds. Popular UK weight unit.
Convert kilograms to stones and pounds. With stones + lbs breakdown.
Convert liters to US and UK gallons. Bidirectional with common presets.
Convert miles per hour to kilometers per hour and back. Speed limit presets.
Estimate monthly electricity bill from kWh usage and rate. Appliance presets included.
Estimate solar panel output from roof area, sun hours, and panel wattage.
Calculate pool volume in liters and gallons. Rectangular and circular shapes.
Calculate gravel needed from area and depth. Results in tons and cubic yards.
Calculate download time from file size and connection speed.
Calculate screen width and height from diagonal and aspect ratio. PPI from resolution.
Plan event budget by guests and cost per head. Category breakdown included.
Calculate number of steps and tread depth from floor height and riser height.
Calculate total photo printing cost by quantity and size.
Estimate wire length from spool weight and wire gauge.
Convert kilometers per hour to miles per hour and back. Speed presets included.
Convert US and UK pints to liters instantly.
Convert liters to US and UK pints.
Convert fluid ounces to milliliters with common size presets.
Convert milliliters to fluid ounces instantly.
Convert acres to hectares for land area measurement.
Convert hectares to acres for land area measurement.
Convert square feet to square meters for real estate and construction.
Convert square meters to square feet instantly.
Convert nautical knots to kilometers per hour.
Convert any date and time to Unix timestamp in seconds and milliseconds.
Convert a Unix timestamp to human-readable date in multiple formats.
Add or subtract business days from a date, excluding weekends.
Count how many times a specific weekday occurs between two dates.
Find which fiscal quarter any date falls in with progress tracking.
Calculate exactly how much time has elapsed since any past date.
Count working days remaining until a target date, excluding weekends.
Generate upcoming pay dates based on your pay schedule.
Calculate the sale price after a percentage discount.
Calculate the percentage increase from one value to another.
Calculate the percentage decrease from one value to another.
Calculate arithmetic mean and weighted average for a set of numbers.
Find the median value of a set of numbers with sorted list display.
Convert bar pressure to PSI instantly with common presets.
Convert PSI pressure to bar instantly with common presets.
Convert watts to amps using voltage. Supports AC and DC circuits.
Convert amps to watts using voltage. Supports AC and DC circuits.
Convert horsepower to watts. Supports mechanical and metric HP.
Convert watts to horsepower. Supports mechanical and metric HP.
Convert BTU/h to watts for heating and cooling calculations.
Convert watts to BTU/h for HVAC and heating calculations.
Convert millimeters to inches with fractional inch display.
Convert inches (decimal or fractional) to millimeters.
Calculate daily food amount for your dog based on weight, age, and activity level.
Calculate daily food amount for your cat based on weight, age, and lifestyle.
Get watering schedule based on plant type, pot size, and season.
Log and track daily screen time with weekly view and goal setting.
Track daily habits with streak counter and calendar view.
Daily gratitude entries with calendar browsing. Saved locally.
Track daily mood with calendar heatmap and trend analysis.
Track birthdays with upcoming list and days-until countdown.
Organize groceries by category with check-off and text sharing.
Plan meals for the week with grocery list generation.
Convert cups to grams for common cooking ingredients like flour, sugar, butter, and rice.
Convert grams to cups for common cooking ingredients like flour, sugar, butter, and rice.
Convert calories (kcal) to kilojoules (kJ) for nutrition labeling and diet tracking.
Convert kilojoules (kJ) to calories (kcal) for nutrition labeling and diet tracking.
Convert megabits per second to megabytes per second for internet speed calculations.
Convert megabytes per second to megabits per second for internet speed calculations.
Convert light years to kilometers for astronomical distance calculations.
Convert nautical miles to kilometers for marine and aviation navigation.
Convert troy ounces to grams for precious metals like gold and silver.
Convert carats to grams for gemstones and precious stones.
Enter bill and tip amount to find the tip percentage. Reverse tip calculator.
Calculate fuel efficiency in MPG or km/L from distance and fuel used.
Calculate usable carpet area from room dimensions minus furniture and fixtures.
Calculate how many wallpaper strips you need from wall and roll dimensions.
Calculate how much area a paint can covers based on size and coverage rate.
Convert currency amounts using a manual exchange rate. No API needed.
Calculate selling price from cost and markup percentage, or find the markup.
Calculate sales commission from sale amount and commission rate.
Calculate total pay with regular and overtime hours at 1.5x or 2x rate.
Calculate tax amount, tip amount, and grand total from subtotal, tax %, and tip %.
Convert quarts to liters instantly with common presets.
Convert liters to quarts instantly with common presets.
Convert tablespoons to teaspoons. 1 tbsp = 3 tsp.
Convert teaspoons to tablespoons. 3 tsp = 1 tbsp.
Convert square yards to square meters instantly.
Convert square miles to square kilometers instantly.
Convert cubic feet to cubic meters instantly.
Convert cubic meters to cubic feet instantly.
Convert Celsius to Kelvin temperature instantly.
Convert Kelvin to Celsius temperature instantly.
Check blood pressure category from systolic and diastolic values with reference chart.
Calculate how long to reach your target weight based on weekly loss or gain rate.
Calculate daily protein needs based on weight, activity level, and fitness goals.
Track daily water intake with visual progress. Saves to localStorage.
Track daily steps toward your goal. See calories burned and distance walked.
Calculate tips based on local customs for 30 countries. Split between people.
Convert hourly rate to annual salary with custom hours per week and weeks per year.
Convert annual salary to hourly rate with monthly, weekly, and daily breakdowns.
Calculate net worth: assets minus liabilities. Visual debt-to-asset ratio.
Calculate emergency fund target and track savings progress toward your goal.
Calculate BMI Prime (BMI / 25). Shows ratio to the upper normal BMI limit.
Calculate Waist-to-Hip ratio with health risk assessment. WHO thresholds.
Calculate BSA using the Du Bois formula. Height and weight input.
Calculate running pace in min/km from distance and time.
Calculate running pace in min/mile from distance and time.
Calculate swimming pace per 100m or 100yd from distance and time.
Calculate average cycling speed from distance and time. km/h and mph.
Estimate VO2max from the Cooper 12-minute run test distance.
Estimate BAC using the Widmark formula. Drinks, weight, gender, time.
Calculate weight of snow on a roof from area, depth, and density.
Calculate feels-like temperature from wind speed and air temperature.
Calculate heat index from temperature and humidity with warning levels.
Calculate dew point from temperature and relative humidity.
Calculate distance from time delay using speed of sound (thunder/lightning).
Estimate cooking time for meat by weight, type, and oven temperature.
Calculate slices and area per person for a pizza.
Measure your reading speed in words per minute.
Calculate minimum Mbps needed for streaming quality and devices.
Estimate battery life from capacity (mAh) and consumption (mA).
Convert seconds to minutes instantly.
Convert minutes to seconds instantly.
Convert days to hours instantly.
Convert hours to days instantly.
Convert weeks to days instantly.
Convert days to weeks instantly.
Convert months to approximate days using 30.44 average.
Convert years to days using 365.25 average for leap years.
Convert degrees to radians with pi representation.
Convert radians to degrees instantly.
What is X percent of Y? Calculate instantly.
X is what percent of Y? Find the answer instantly.
Calculate the percentage change from one value to another.
Convert fractions to decimals and back.
Convert fractions to percentages and back.
Convert decimals to simplified fractions.
Solve A:B = C:? proportions instantly.
If X gives Y, then Z gives what? Cross multiplication.
Calculate X to the power of Y. Supports decimals.
Calculate log base N of X. Common log, natural log, custom base.
Calculate square root, cube root, or nth root of any number instantly.
Calculate the absolute value of any number. Learn about |x| with examples.
Round numbers to N decimal places with ceil, floor, and round options.
Calculate A mod B remainder with step-by-step explanation.
Convert numbers to and from scientific notation (1234 to 1.234 x 10^3).
See today's date in all formats with day of week, week number, and more.
See the current time in a large display with multiple formats and UTC offset.
Live countdown to December 25. Days, hours, minutes, seconds.
Live countdown to October 31. Days, hours, minutes, seconds.
Live countdown to February 14. Days, hours, minutes, seconds.
Live countdown to June 21 summer solstice. Days, hours, minutes, seconds.
Select any month and year to find out how many days it has.
Find how many ISO weeks are in any given year (52 or 53).
See how many days are left in the current year with a progress bar.
Live-updating Unix timestamp display. Copy seconds or milliseconds.
Convert liters to milliliters instantly. Free online L to mL converter.
Convert milliliters to liters instantly. Free online mL to L converter.
Convert kilograms to milligrams instantly. Free online kg to mg converter.
Convert milligrams to kilograms instantly. Free online mg to kg converter.
Convert kilometers to centimeters instantly. Free online km to cm converter.
Convert centimeters to kilometers instantly. Free online cm to km converter.
Convert meters to millimeters instantly. Free online m to mm converter.
Convert millimeters to meters instantly. Free online mm to m converter.
Convert hours to seconds instantly. Free online hours to seconds converter.
Convert seconds to hours instantly. Free online seconds to hours converter.
Convert days to minutes instantly. Free online days to minutes converter.
Convert minutes to days instantly. Free online minutes to days converter.
Convert weeks to hours instantly. Free online weeks to hours converter.
Convert months to weeks (approximate). Free online months to weeks converter.
Convert years to months instantly. Free online years to months converter.
Double any number and see a doubling table. Free online calculator.
Halve any number and see a halving table. Free online calculator.
Calculate the square of any number. Includes squares table 1-20.
Calculate the cube of any number. Shows N cubed instantly.
Calculate the reciprocal (1/N) of any number instantly.
Add up a list of numbers. Shows sum, average, and count.
Multiply two numbers and see the product. Free online multiplication tool.
Divide two numbers. Shows quotient and remainder.
Check if a number is even or odd. Educational tool with explanation.
Find the prime factors of any number. Shows factorization breakdown.
Calculate the Least Common Multiple of two numbers.
Calculate the Greatest Common Divisor of two numbers.
Convert any number (1-3999) to Roman numerals instantly.
Convert Roman numerals to decimal numbers instantly.
Convert months to years instantly. Free online converter.
Convert days to years using 365.25 average. Free converter.
Convert years to weeks (52.18 avg). Free online converter.
Convert years to hours (8766 avg). Free online converter.
Convert centuries to years. 1 century = 100 years.
Convert decades to years. 1 decade = 10 years.
Convert years to decades. Free online converter.
Convert years to centuries. Free online converter.
Convert miles to yards. 1 mile = 1760 yards.
Convert yards to miles. Free online converter.
Convert kilograms to ounces. 1 kg = 35.274 oz.
Convert ounces to pounds. 16 oz = 1 lb.
Convert pounds to ounces. 1 lb = 16 oz.
Convert cups to liters. 1 cup = 0.2366 L.
Convert liters to cups. 1 L = 4.227 cups.
Convert ounces to kilograms instantly.
Convert kilograms to pounds and remaining ounces.
Convert stone to pounds instantly.
Convert pounds to stone instantly.
Convert nautical miles to statute miles.
Convert statute miles to nautical miles.
Convert fathoms to meters instantly.
Convert meters to fathoms instantly.
Convert leagues to kilometers.
Check if a number is even.
Check if a number is odd.
Check if a number is positive.
Check if a number is negative.
Get the sign of a number (+1, -1, or 0).
Round a number up to the nearest integer.
Round a number down to the nearest integer.
Remove the decimal part of a number.
Round a number to N decimal places.
Find the minimum and maximum from a list of numbers.
Calculate the range (max minus min) of a number list.
Calculate the arithmetic mean of numbers.
Calculate the weighted average of values and weights.
Calculate the geometric mean of numbers.
Calculate the harmonic mean of numbers.
Calculate the standard deviation of a data set.
Calculate the variance of a data set.
Calculate the nth root of any number.
Calculate base raised to any power.
Convert a percentage to a simplified fraction.
How many seconds are in a day? 86,400.
How many minutes are in a day? 1,440.
How many hours are in a week? 168.
How many seconds are in a year?
Calculate your age in months.
Calculate your age in weeks.
Calculate your age in hours.
Calculate your age in minutes.
Calculate days since a specific date.
Calculate months since a specific date.
Calculate years since a specific date.
Find out when the next Friday is.
Find out when the next Monday is.
Calculate how many days until your next birthday.
Find out what season a date falls in.
Find your Chinese zodiac animal sign by birth year.
Convert between fan oven, conventional oven, and gas mark temperatures.
Visual countdown timer for soft, medium, and hard boiled eggs with audio alert.
Calculate grams of dry pasta, water, and salt per person by appetite.
Get the perfect rice-to-water ratio and cooking time for any rice type.
Convert sugar amounts to stevia, erythritol, monk fruit, honey, maple syrup.
Convert between butter and oil amounts for baking substitutions.
Convert between fresh yeast, active dry yeast, and instant yeast.
Internal temperatures for every meat type and doneness level. USDA safe temps.
Adjust batter amount when switching between cake pan sizes and shapes.
How long 50+ foods last in the freezer. Searchable database.
Calculate rebar quantity, total length, and weight for concrete slabs.
Calculate number of bricks and mortar bags for a wall.
Calculate roof pitch angle and ratio from rise and run.
Calculate board feet and estimated cost for lumber projects.
Calculate R-value from insulation material and thickness. Climate zone guide.
Number of 4x8 drywall sheets, screws, tape, and mud for a room.
Flow rate in GPM using Hazen-Williams formula for PVC pipes.
Find required beam size for a given span and load.
Calculate cubic yards of soil to remove and truck loads needed.
Calculate ADA-compliant ramp length from height and slope ratio.
Calculate late fees on overdue invoices with daily or monthly rates.
Simple interest accrued on a principal amount over time.
Estimate handicap index from scores, course rating, and slope.
Frame-by-frame bowling scorer with spare and strike logic.
Calculate batting average with optional season game tracker.
Earned run average calculator for baseball pitchers.
Calculate NFL quarterback passer rating from game stats.
Split times per km or mile from total time and distance.
Total time and pace per segment for sprint, Olympic, half, and full triathlons.
Estimated watts from rider weight, speed, and gradient.
Recommended DIN setting from weight, height, age, and ability level.
Count swim laps with timer, distance tracking, and localStorage.
Calculate the derivative of polynomials step by step.
Calculate the integral of polynomials step by step.
Calculate limits of polynomial functions at a given point.
2D/3D vector operations: add, subtract, dot and cross product.
Complex number arithmetic and polar form conversion.
Calculate determinant of 2x2, 3x3 and 4x4 matrices.
Find eigenvalues of a 2x2 matrix with characteristic equation.
Binary AND, OR, XOR, NOT and shift operations on two inputs.
Union, intersection, difference and symmetric difference of sets.
Generate truth tables for logical expressions with AND, OR, NOT, XOR.
Estimate monthly insurance premium from coverage and risk.
Calculate how much life insurance coverage you need.
Project HSA growth with contributions and tax savings.
Calculate SE tax for freelancers and self-employed.
Find the pre-tax price from a total including sales tax.
Extract net price and VAT from a VAT-inclusive total.
Calculate area and perimeter of a parallelogram.
Calculate area and perimeter of a rhombus.
Calculate area and perimeter of a regular pentagon.
Calculate area and perimeter of a regular octagon.
Calculate area and arc length of a circle sector.
Calculate arc length from radius and angle.
Calculate surface area and volume of a cube.
Calculate surface area and volume of a sphere.
Calculate surface area and volume of a cylinder.
Calculate volume and surface area of a rectangular prism.
Calculate smoking time and temperature for meats.
Plan quantities for a BBQ based on guest count.
Find wine and food pairings for different cheeses.
Find substitutes for common spices.
Find substitutes for different types of flour.
Find dairy-free milk substitutes for recipes.
Temperature guide for tempering different chocolates.
Find your US federal tax bracket by income.
Calculate your effective tax rate.
Compare cost of living between two salary levels.
Estimate reading grade level from average sentence and word length.
Generate random spelling practice words by difficulty.
Practice addition, subtraction, multiplication flashcards.
Practice division problems with answer checking.
Practice adding and comparing fractions.
Practice percentage calculation problems.
Solve linear equations of the form ax + b = c.
Check if both sides of a math equation are equal.
Plot y = f(x) for basic math functions.
Calculate your exact age in seconds, minutes, and hours.
Estimate total breaths taken in your lifetime.
Estimate total heartbeats in your lifetime.
Estimate total words read per year from reading habits.
Estimate total cups of coffee consumed in your lifetime.
Estimate total steps walked in your lifetime.
Estimate total distance walked in your lifetime.
Calculate total time spent sleeping in your life.
Estimate total meals eaten in your lifetime.
Estimate total money earned over your working life.
Convert tablespoons to cups and vice versa.
Convert cups to tablespoons.
Convert meters to inches.
Convert inches to meters.
Convert kilometers to feet.
Convert feet to kilometers.
Convert milligrams to ounces.
Convert ounces to milligrams.
Convert seconds to days, hours, and minutes.
Convert days to seconds.
Convert acres to square feet.
Convert square feet to acres.
Convert cubic yards to cubic meters.
Convert cubic meters to cubic yards.
Convert megawatts to kilowatts.
Convert kilowatts to megawatts.
Convert gigawatts to megawatts.
Convert megawatts to gigawatts.
Convert micrometers to inches.
Convert inches to micrometers.
Convert kilopascals to PSI.
Convert PSI to kilopascals.
Convert torr to pascal.
Convert pascal to torr.
Calculate the absolute difference between two numbers.
Round a number up to the nearest integer.
Round a number down to the nearest integer.
Truncate a number, removing its decimal part.
Determine the sign of a number (-1, 0, or 1).
Check if a number is a prime number.
Find the next prime number after a given number.
Find the previous prime number before a given number.
Calculate the sum of all digits in a number.
Calculate the product of all digits in a number.
See how many seconds have passed since midnight.
See how many minutes remain until midnight.
Countdown hours until next New Year.
Show how many days are in the current month.
Check if Daylight Saving Time is currently active.
Show the current fiscal quarter.
Calculate which day of the year it is.
Calculate which week of the year it is.
Calculate total seconds in the current month.
Calculate total minutes in the current year.
Convert an integer to a floating point representation.
Convert a float to an integer by truncating.
Round a number up to a specified number of decimals.
Round a number down to a specified number of decimals.
Split a tip jar amount evenly among staff members.
Calculate recurring donation totals over a time period.
Estimate tax savings from charitable donations by bracket.
Set a countdown timer to any future date and time.
Estimate food, drinks, and supplies for a party by guest count.
Manage event guest list with RSVP tracking and counts.
Plan table seating arrangements by table size and guest count.
Calculate invitations needed from guest count with extras.
Plan potluck dishes and servings by number of attendees.
Plan gift spending across recipients within a total budget.
Calculate exact age in years, months, and days from birthdate.
Calculate years, months, and days since a special date.
Calculate years until retirement from current and target age.
Estimate Social Security benefits from salary and retirement age.
Estimate pension payout from years of service and salary.
Estimate inheritance tax from estate value and exemptions.
Calculate total estate value from assets and liabilities.
Estimate probate costs as percentage of estate value.
Visualize compound growth from principal, rate, and time.
Calculate time to double or triple your money at a given rate.
Convert milligrams to micrograms instantly.
Convert micrograms to milligrams instantly.
Convert nanograms to micrograms for lab and pharma use.
Convert micrograms to nanograms for precise measurements.
Convert picograms to nanograms for scientific applications.
Convert nanograms to picograms for molecular-scale work.
Convert femtometers to picometers for subatomic measurements.
Convert picometers to nanometers for nano-scale work.
Convert nanometers to micrometers for optics and materials.
Convert micrometers to millimeters for precision engineering.
Convert millimeters to centimeters quickly.
Convert decimeters to meters for everyday measurements.
Convert meters to decimeters quickly.
Convert decameters to meters for land surveying.
Convert meters to decameters quickly.
Convert hectometers to kilometers for geographic distances.
Convert kilometers to hectometers quickly.
Convert megameters to kilometers for planetary-scale distances.
Convert kilometers to megameters for astronomical use.
Convert gigameters to kilometers for interplanetary distances.
Convert between bps, kbps, Mbps, and Gbps data rates.
Convert kilobits to megabits for network bandwidth.
Convert megabits to gigabits for high-speed networking.
Convert gigabits to terabits for backbone network calculations.
Convert petabytes to exabytes for large-scale storage planning.
Convert exabytes to zettabytes for global data estimates.
Calculate baud rate from bit rate and bits per symbol.
Estimate time to transfer a file at a given bandwidth.
Calculate actual download speed from file size and elapsed time.
Estimate upload time from file size and upload bandwidth.
Estimate video file size from resolution, bitrate, and duration.
Estimate audio file size from sample rate, bit depth, and duration.
Estimate image file size from resolution, bit depth, and compression.
Calculate monthly storage costs from data volume and price per GB.
Compare cloud storage pricing across common tier sizes.
Estimate backup storage needs from data size and retention policy.
Calculate usable capacity and fault tolerance for RAID configurations.
Calculate disk usage percentage and remaining free space.
Calculate memory usage from process count and per-process allocation.
Calculate recommended swap partition size from RAM and workload.
Convert megahertz to gigahertz for radio and processor frequencies.
Convert gigahertz to terahertz for high-frequency applications.
Convert terabits to petabits for large-scale data rates.
Convert petabits to exabits for global network capacity planning.
Convert milliwatts to watts for electronics and RF power.
Convert watts to milliwatts for low-power device calculations.
Convert kilowatts to watts for electrical engineering.
Convert watts to kilowatts for power system sizing.
Convert megajoules to kilojoules for energy calculations.
Convert kilojoules to megajoules for thermodynamics.
Convert gigajoules to megajoules for industrial energy.
Convert terajoules to gigajoules for national energy statistics.
Convert millivolts to volts for sensor and signal measurements.
Convert volts to millivolts for precision electronics.
Convert kilovolts to volts for high-voltage systems.
Convert volts to kilovolts for power transmission.
Convert milliohms to ohms for low-resistance measurements.
Convert ohms to milliohms for precision resistor values.
Convert kilohms to ohms for circuit design.
Convert ohms to kilohms for resistor selection.
Calculate return on investment for marketing campaigns.
Calculate cost per click from ad spend and total clicks.
Calculate cost per thousand impressions for ad campaigns.
Calculate cost per acquisition from spend and conversions.
Calculate ROAS from revenue generated and ad spend.
Calculate email open rate from opens and delivered emails.
Calculate email click-through rate from clicks and delivered emails.
Calculate website bounce rate from single-page and total sessions.
Calculate average session duration from total time and sessions.
Calculate average pages per session from pageviews and sessions.
Calculate unique visitor percentage from unique and total visits.
Calculate returning visitor rate from repeat and total visitors.
Calculate cart abandonment rate from carts created and completed.
Calculate checkout conversion rate from completions and initiations.
Calculate conversion rate between funnel stages.
Calculate lead scores from weighted qualification criteria.
Calculate weighted pipeline value from deals and probabilities.
Calculate sales win rate from closed-won and total opportunities.
Calculate average deal size from total revenue and deal count.
Calculate revenue per employee for workforce productivity analysis.
Convert milligrams to ounces for small weight measurements.
Convert ounces to milligrams with precision.
Convert grams to pounds for cooking and shipping.
Convert pounds to grams for recipes and lab work.
Convert kilograms to pounds with ounces remainder.
Convert stone to pounds for UK body weight.
Convert pounds to stone and remaining pounds.
Convert imperial long tons to kilograms.
Convert kilograms to imperial long tons.
Convert US short tons to kilograms.
Convert kilograms to US short tons.
Convert grains to grams for ammunition and pharmacy.
Convert grams to grains for reloading and apothecary.
Convert pennyweight to grams for precious metals.
Convert grams to pennyweight for jewelry trade.
Convert apothecary scruples to grams.
Convert avoirdupois drams to grams.
Convert grams to avoirdupois drams.
Convert quarters (28 lb) to kilograms.
Convert kilograms to quarters.
Convert hundredweight to kilograms.
Convert kilograms to hundredweight.
Convert slugs to kilograms for physics calculations.
Convert kilograms to slugs for engineering.
Convert atomic mass units to kilograms for chemistry.
Convert angstroms to nanometers for spectroscopy.
Convert nanometers to angstroms for crystallography.
Convert fermi (femtometers) to meters for nuclear physics.
Convert meters to fermi for subatomic scales.
Convert surveyor chains to meters for land measurement.
Convert meters to surveyor chains.
Convert furlongs to meters for horse racing distances.
Convert meters to furlongs.
Convert rods (perches) to meters for land surveying.
Convert meters to rods for historic land measures.
Convert perches to square meters for land area.
Convert square meters to perches.
Convert roods to square meters for traditional land area.
Convert square meters to roods.
Convert board feet to cubic meters for lumber trade.
Convert cubic meters to board feet for timber.
Convert cords of firewood to cubic meters.
Convert cubic meters to cords of firewood.
Convert bushels to liters for grain and produce.
Convert liters to bushels for agriculture.
Convert pecks to liters for dry volume.
Convert liters to pecks for dry goods.
Convert gills to milliliters for liquid measurement.
Convert milliliters to gills.
Convert fluid drams to milliliters for pharmacy.
Convert hourly wage to annual salary based on work hours.
Convert annual salary to hourly wage equivalent.
Calculate daily rate from hourly or annual compensation.
Estimate total project cost from hours, rate, and expenses.
Calculate invoice totals with hours, rates, and tax.
Calculate how much a given time period is worth at your rate.
Calculate how long you need to work to earn a given amount.
Calculate monthly savings needed to reach a financial goal.
Plan debt payoff using the snowball method (smallest first).
Plan debt payoff using the avalanche method (highest rate first).
Calculate recommended emergency fund based on monthly expenses.
Estimate net pay after taxes and deductions.
Calculate gross pay from hours worked and pay rate.
Calculate true hourly cost including overhead and benefits.
Calculate cost per unit from total cost and quantity.
Compare prices by calculating cost per gram.
Compare prices by calculating cost per ounce.
Compare liquid prices by cost per liter.
Compare liquid prices by cost per gallon.
Compare gas prices factoring in distance to station.
Compare running costs of electric vs gasoline vehicles.
Calculate return on investment for solar panel installation.
Calculate annual savings by switching to an electric vehicle.
Calculate miles per gallon equivalent for electric vehicles.
Calculate carbon offsets needed for travel and energy use.
Convert degrees to gradians for surveying and navigation.
Convert gradians to degrees for angle measurement.
Convert degrees to full turns (revolutions).
Convert full turns (revolutions) to degrees.
Convert radians to gradians for engineering calculations.
Convert gradians to radians for trigonometry.
Convert arc minutes to decimal degrees for astronomy and navigation.
Convert decimal degrees to arc minutes.
Convert arc seconds to decimal degrees for precise angular measurement.
Convert decimal degrees to arc seconds.
Convert revolutions to degrees for rotational motion.
Convert degrees to revolutions for motor and gear calculations.
Convert military mils to degrees for artillery and targeting.
Convert degrees to military mils.
Convert compass bearings (N, NE, SW) to numeric degrees.
Convert numeric degrees to compass bearing direction.
Convert quadrant bearing notation to azimuth angle.
Convert azimuth angle to quadrant bearing notation.
Convert slope percentage or ratio to angle in degrees.
Convert angle in degrees to slope percentage and ratio.
Convert feet per second to meters per second.
Convert meters per second to feet per second.
Convert feet per minute to meters per minute.
Convert meters per minute to feet per minute.
Convert km/h to feet per second for mixed-unit work.
Convert feet per second to km/h.
Convert Mach number to feet per second at sea level.
Convert feet per second to Mach number at sea level.
Estimate muzzle velocity from barrel length and propellant energy.
Convert frequency in hertz to time period in seconds.
Convert time period in seconds to frequency in hertz.
Convert revolutions per minute to period in seconds.
Convert time period to revolutions per minute.
Convert frame rate (fps) to frame duration in milliseconds.
Convert frame duration in milliseconds to frame rate (fps).
Convert CPU clock speed in GHz to cycle time in nanoseconds.
Convert cycle time in nanoseconds to clock speed in GHz.
Convert milliliters to drops for medical and essential oil dosing.
Convert drops to milliliters for precise liquid measurement.
Convert teaspoons to drops for medicine and flavoring.
Convert drops to teaspoons for cooking and pharmacy.
Convert cubic inches to milliliters for engine displacement and volume.
Convert milliliters to cubic inches.
Convert cubic centimeters (cc) to milliliters for medical and engine use.
Convert milliliters to cubic centimeters.
Convert liters per minute to gallons per minute for flow rate.
Convert gallons per minute to liters per minute.
Calculate cubic meters per hour for industrial flow measurement.
Calculate volumetric flow rate from fluid velocity and pipe area.
Calculate flow rate through an orifice plate from pressure drop.
Calculate flow rate through a venturi tube from pressure differential.
Convert density from kilograms per cubic meter to pounds per cubic foot.
Convert density from pounds per cubic foot to kilograms per cubic meter.
Convert density from grams per milliliter to kilograms per cubic meter.
Convert density from kilograms per cubic meter to grams per milliliter.
Convert British thermal units to joules for energy calculations.
Convert joules to British thermal units.
Convert therms to joules for natural gas energy measurement.
Convert joules to therms for gas billing calculations.
Convert calories to British thermal units.
Convert British thermal units to calories.
Convert kilowatt-hours to joules for energy unit conversion.
Convert joules to kilowatt-hours.
Convert kilowatt-hours to British thermal units.
Convert British thermal units to kilowatt-hours.
Convert megajoules to kilowatt-hours for energy comparison.
Convert kilowatt-hours to megajoules.
Convert horsepower-hours to joules for mechanical energy.
Convert joules to horsepower-hours.
Convert foot-pounds to joules for torque and energy conversion.
Convert joules to foot-pounds.
Convert millimeters of mercury to kilopascals for blood pressure and vacuum.
Convert kilopascals to millimeters of mercury.
Convert inches of mercury to kilopascals for barometric pressure.
Convert kilopascals to inches of mercury.
Convert centimeters of water to kilopascals for ventilator and fluid pressure.
Convert kilopascals to centimeters of water.
Convert bar to kilopascals for industrial pressure measurement.
Convert kilopascals to bar.
Convert millibars to kilopascals for meteorology and weather.
Convert kilopascals to millibars.
Convert bar to standard atmospheres for pressure comparison.
Convert standard atmospheres to bar.
Convert torr to bar for vacuum and low-pressure systems.
Convert bar to torr.
Convert pounds per square inch to standard atmospheres.
Convert standard atmospheres to pounds per square inch.
Convert kilopascals to standard atmospheres.
Convert standard atmospheres to kilopascals.
Convert megapascals to kilopascals for engineering pressure.
Convert kilopascals to megapascals.
Convert Rankine to Fahrenheit for absolute temperature scale.
Convert Fahrenheit to Rankine absolute temperature.
Convert Rankine to Kelvin for cross-system temperature conversion.
Convert Kelvin to Rankine absolute temperature.
Convert Rankine to Celsius temperature.
Convert Celsius to Rankine absolute temperature.
Convert Delisle scale to Celsius temperature.
Convert Celsius to Delisle temperature scale.
Convert Newton temperature scale to Celsius.
Convert Celsius to Newton temperature scale.
Convert Reaumur scale to Celsius temperature.
Convert Celsius to Reaumur temperature scale.
Convert Romer scale to Celsius temperature.
Convert Celsius to Romer temperature scale.
Convert gas mark oven settings to Celsius temperature.
Convert Celsius temperature to gas mark oven settings.
Calculate the temperature difference between two values in any scale.
Convert newtons to kilogram-force for weight and load calculations.
Convert kilogram-force to newtons.
Convert newtons to ounce-force for small force measurement.
Convert ounce-force to newtons.
Convert newtons to poundals for imperial force units.
Convert poundals to newtons.
Convert kilogram-force to pound-force for metric-imperial force conversion.
Convert pound-force to kilogram-force.
Convert newton-meters to foot-pounds for torque measurement.
Convert foot-pounds to newton-meters for torque conversion.
Convert newton-meters to inch-pounds for small torque values.
Convert inch-pounds to newton-meters.
Convert newton-meters to kilogram-force centimeters for torque.
Convert kilogram-force centimeters to newton-meters.
Calculate power from torque and rotational speed.
Calculate torque from power and rotational speed.
Convert square millimeters to square centimeters.
Convert square centimeters to square millimeters.
Convert square centimeters to square inches.
Convert square inches to square centimeters.
Convert square meters to square yards for area measurement.
Convert square yards to square meters.
Convert square kilometers to square miles for land area.
Convert square miles to square kilometers.
Convert square kilometers to hectares for agricultural land.
Convert hectares to square kilometers.
Convert US survey townships to square kilometers.
Convert square kilometers to US survey townships.
Convert US land survey sections to square kilometers.
Convert square kilometers to US land survey sections.
Convert marla to square feet for South Asian land measurement.
Convert square feet to marla for property area in South Asia.
Calculate calories per serving from total calories and number of servings.
Calculate protein grams per serving from total protein and servings.
Calculate carbohydrate grams per serving from total carbs and servings.
Calculate fat grams per serving from total fat and servings.
Calculate dietary fiber per serving from total fiber and servings.
Calculate sodium milligrams per serving from total sodium and servings.
Calculate sugar grams per serving from total sugar and servings.
Calculate percentage of daily value for common vitamins.
Calculate percentage of daily value for common minerals.
Calculate daily caffeine intake from beverages and compare to safe limits.
Calculate alcohol units from volume and ABV percentage.
Estimate blood alcohol level from drinks, weight, and time elapsed.
Calculate the cost per serving from total ingredient costs and servings.
Calculate ingredient quantities for meal prepping multiple servings.
Estimate food quantities needed for a given number of party guests.
Scale punch bowl recipes by number of guests.
Estimate pounds of ice needed for events based on guests and duration.
Step-by-step instructions for common decorative napkin folds.
Visual guide to formal, casual, and buffet table settings.
Generate printable place cards for dinner parties and events.
Calculate required pace per mile or kilometer for a target marathon time.
Calculate required pace for a target half marathon finish time.
Calculate required pace per mile or kilometer for a target 5K time.
Calculate required pace per mile or kilometer for a target 10K time.
Predict race finish time for one distance based on another distance result.
Calculate heart rate training zones from max heart rate or threshold.
Calculate heart rate reserve from resting and max heart rate.
Estimate maximum heart rate from age using common formulas.
Generate printable race bib numbers for running events.
Track and display race medals earned over time.
Log and track personal best times across race distances.
Log daily training runs with distance, time, and notes.
Calculate and track total weekly running or cycling mileage.
Calculate and track total monthly running or cycling mileage.
Set a countdown to your next race date with training weeks remaining.
Generate a printable race day gear and preparation checklist.
Calculate fluid intake needed during a race based on duration and conditions.
Calculate calorie and carb intake needed during a race.
Estimate post-race recovery time based on distance and intensity.
Estimate recovery timeline for common running injuries.
Convert between Excel serial date numbers and calendar dates.
Convert between Unix timestamps and human-readable dates with timezone.
Convert calendar dates to fictional Star Trek stardate format.
Convert standard time to Swatch Internet Time beats.
Convert standard time to French Revolutionary decimal time.
Convert standard hours and minutes to metric time units.
Convert millibar pressure values to pascals.
Convert pascal pressure values to millibars.
Convert hectopascals to millibars for weather data.
Convert millibars to hectopascals for meteorology.
Convert kilopascals to millibars.
Convert millibars to kilopascals.
Convert megapascals to bar pressure units.
Convert bar to megapascal pressure units.
Convert gigapascals to megapascals for material science.
Convert megapascals to gigapascals.
Convert teaspoons to grams for cooking and baking measurements.
Convert grams to teaspoons for recipe conversions.
Convert tablespoons to grams for precise cooking.
Convert grams to tablespoons for kitchen use.
Convert cups to fluid ounces for liquid measurements.
Convert fluid ounces to cups.
Convert pints to cups for liquid volume.
Convert cups to pints.
Convert quarts to pints for volume measurement.
Convert pints to quarts.
Convert gallons to quarts for large volume conversions.
Convert quarts to gallons.
Convert barrels to liters for oil and liquid volume.
Convert liters to barrels.
Convert hogsheads to liters for traditional cask volume.
Convert liters to hogsheads.
Convert firkins to liters for brewing and cask measurement.
Convert liters to firkins.
Convert kilderkins to liters for traditional brewing cask size.
Convert liters to kilderkins.
Convert tierces to liters for wine and spirits cask volume.
Convert liters to tierces.
Convert pipes to liters for large wine cask volume.
Convert liters to pipes.
Convert tuns to liters for the largest traditional cask measure.
Convert ancient talents to kilograms for historical weight.
Convert kilograms to ancient talents.
Convert ancient minas to kilograms for Mesopotamian weight.
Convert kilograms to ancient minas.
Convert ancient shekels to grams for biblical weight measurement.
Convert grams to ancient shekels.
Convert tolas to grams for South Asian gold weight.
Convert grams to tolas.
Convert momme to grams for Japanese silk weight measurement.
Convert grams to momme.
Convert catties to kilograms for East Asian weight.
Convert kilograms to catties.
Convert piculs to kilograms for Southeast Asian trade weight.
Convert kilograms to piculs.
Convert maunds to kilograms for Indian subcontinent weight.
Convert kilograms to maunds.
Convert viss to kilograms for Burmese weight measurement.
Convert kilograms to viss.
Convert gin (Chinese unit) to grams for traditional weight.
Convert grams to gin (Chinese unit).
Convert kantars to kilograms for Middle Eastern weight.
Convert kilograms to kantars.
Convert batmans to kilograms for Persian weight measurement.
Convert kilograms to batmans.
Convert rotls to grams for Arabic weight measurement.
Convert cubits to centimeters for ancient length measurement.
Convert centimeters to cubits.
Convert spans to centimeters for hand-based length.
Convert centimeters to spans.
Convert hands to centimeters for horse height measurement.
Convert centimeters to hands.
Convert palms to centimeters for traditional length.
Convert centimeters to palms.
Convert digits to centimeters for ancient finger-width measure.
Convert centimeters to digits.
Convert barleycorns to millimeters for traditional shoe sizing.
Convert millimeters to barleycorns.
Convert ells to centimeters for medieval cloth measurement.
Convert centimeters to ells.
Convert Roman paces to meters for historical distance.
Convert meters to Roman paces.
Convert stadia to meters for ancient Greek distance.
Convert meters to stadia.
Convert parasangs to kilometers for ancient Persian distance.
Convert kilometers to parasangs.
Convert Chinese li to meters for traditional distance.
Convert meters to Chinese li.
Convert Japanese ri to kilometers for traditional distance.
Convert kilometers to Japanese ri.
Convert Russian versts to kilometers for historical distance.
Calculate a percentage of another percentage value.
Calculate double the percentage of a given number.
Calculate triple any number instantly.
Calculate quadruple any number instantly.
Calculate half of half (one quarter) of any number.
Calculate one third of any number.
Calculate one quarter of any number.
Calculate one fifth of any number.
Calculate one sixth of any number.
Calculate one seventh of any number.
Calculate one eighth of any number.
Calculate one ninth of any number.
Calculate one tenth of any number.
Calculate one hundredth of any number.
Calculate one thousandth of any number.
Calculate one millionth of any number.
Calculate one billionth of any number.
Calculate one trillionth of any number.
Find the original number before a percentage was applied.
Calculate the percentage one number is of another.
Calculate profit margin from cost and selling price.
Calculate cost price from selling price and margin percentage.
Calculate final price including tax from base price and tax rate.
Calculate base price excluding tax from total price and tax rate.
Calculate discount percentage from original and sale prices.
Convert milliseconds to seconds for precise time measurement.
Convert seconds to milliseconds.
Convert microseconds to milliseconds for sub-second timing.
Convert milliseconds to microseconds.
Convert nanoseconds to microseconds for high-precision timing.
Convert microseconds to nanoseconds.
Convert picoseconds to nanoseconds for ultra-precise timing.
Convert nanoseconds to picoseconds.
Convert fortnights to days (1 fortnight = 14 days).
Convert days to fortnights.
Convert sidereal days to hours (1 sidereal day = 23.9345 hours).
Convert hours to sidereal days.
Convert synodic months to days (1 synodic month = 29.53059 days).
Convert tropical years to days (1 tropical year = 365.24219 days).
Convert Julian years to days (1 Julian year = 365.25 days).
Convert Gregorian years to days (1 Gregorian year = 365.2425 days).
Convert Olympiads to years (1 Olympiad = 4 years).
Convert lustra to years (1 lustrum = 5 years).
Convert indictions to years (1 indiction = 15 years).
Convert jubilees to years (1 jubilee = 50 years).
Convert centuries to days for historical time spans.
Convert millennia to years (1 millennium = 1000 years).
Convert eons to years (1 eon = 1 billion years).
Convert galactic years to years (1 galactic year = 225 million years).
Convert Planck time units to seconds (1 Planck time = 5.391e-44 s).
Convert ares to square meters (1 are = 100 sqm).
Convert square meters to ares.
Convert decares to square meters (1 decare = 1000 sqm).
Convert square meters to decares.
Convert stremmas to square meters (1 stremma = 1000 sqm).
Convert square meters to stremmas.
Convert dunams to square meters (1 dunam = 1000 sqm).
Convert square meters to dunams.
Convert Chinese mu to square meters (1 mu = 666.67 sqm).
Convert square meters to Chinese mu.
Convert Japanese tsubo to square meters (1 tsubo = 3.306 sqm).
Convert square meters to Japanese tsubo.
Convert Korean pyeong to square meters (1 pyeong = 3.306 sqm).
Convert square meters to Korean pyeong.
Convert Thai rai to square meters (1 rai = 1600 sqm).
Convert square meters to Thai rai.
Convert Egyptian feddans to square meters (1 feddan = 4200.83 sqm).
Convert square meters to Egyptian feddans.
Convert jeribs to square meters (1 jerib = 2000 sqm).
Convert square meters to jeribs.
Convert bighas to square meters (1 bigha = 2529.29 sqm).
Convert square meters to bighas.
Convert kanals to square meters (1 kanal = 505.857 sqm).
Convert square meters to kanals.
Convert gunthas to square meters (1 guntha = 101.17 sqm).
Convert jiggers to milliliters (1 jigger = 44.36 mL).
Convert milliliters to jiggers.
Convert shots to milliliters (1 shot = 44.36 mL).
Convert milliliters to shots.
Convert nips to milliliters (1 nip = 30 mL).
Convert milliliters to nips.
Convert dashes to milliliters (1 dash = 0.616 mL).
Convert milliliters to dashes.
Convert pinches to milliliters (1 pinch = 0.308 mL).
Convert milliliters to pinches.
Convert smidgens to milliliters (1 smidgen = 0.154 mL).
Convert milliliters to smidgens.
Convert dessertspoons to milliliters (1 dessertspoon = 10 mL).
Convert milliliters to dessertspoons.
Convert wine glasses to milliliters (1 wine glass = 150 mL).
Convert milliliters to wine glasses.
Convert coffee cups to milliliters (1 coffee cup = 150 mL).
Convert milliliters to coffee cups.
Convert tumblers to milliliters (1 tumbler = 240 mL).
Convert milliliters to tumblers.
Convert demitasse cups to milliliters (1 demitasse = 60 mL).
Convert milliliters to demitasse cups.
Convert magnums to liters (1 magnum = 1.5 L).
Convert liters to magnums.
Convert jeroboams to liters (1 jeroboam = 3 L).
Convert furlongs per fortnight to meters per second.
Convert meters per minute to other speed units.
Convert meters per hour to other speed units.
Convert kilometers per second to other speed units.
Convert miles per second to other speed units.
Convert feet per hour to other speed units.
Convert inches per second to other speed units.
Convert centimeters per second to other speed units.
Convert millimeters per second to other speed units.
Convert leagues per hour to other speed units.
Speed of light in vacuum reference and converter (299,792,458 m/s).
Speed of sound in air reference and converter (343 m/s at 20C).
Speed of sound in water reference and converter (1480 m/s).
Speed of sound in steel reference and converter (5960 m/s).
Speed of sound in glass reference and converter (5640 m/s).
Speed of sound in diamond reference and converter (12000 m/s).
Speed of sound in helium reference and converter (970 m/s).
Reference speeds for common bullet types and ballistic comparison.
Reference speeds for archery arrows and bow types.
Reference speeds for baseball pitches by type.
Reference speeds for tennis serves and shot types.
Reference speeds for golf ball launch by club type.
Reference speeds for hockey puck shots by type.
Reference exit velocities for baseball hits by type.
Reference speeds for football throws by pass type.
Look up protein content per 100g for common foods.
Look up carbohydrate content per 100g for common foods.
Look up fat content per 100g for common foods.
Look up dietary fiber content per 100g for common foods.
Track push-up reps and sets with rest timer between sets.
Track sit-up reps and sets with rest timer between sets.
Track squat reps and sets with rest timer between sets.
Time your plank holds and track progress over sessions.
Track jumping jack reps and sets with rest timer.
Track burpee reps and sets with rest timer between sets.
Track lunge reps and sets with rest timer between sets.
Track pull-up reps and sets with rest timer between sets.
Track dip reps and sets with rest timer between sets.
Track crunch reps and sets with rest timer between sets.
Track mountain climber reps and sets with rest timer.
Track box jump reps and sets with rest timer between sets.
Estimate your deadlift one-rep max from submaximal lifts.
Estimate your bench press one-rep max from submaximal lifts.
Estimate your squat one-rep max from submaximal lifts.
Estimate your overhead press one-rep max from submaximal lifts.
Estimate your barbell row one-rep max from submaximal lifts.
Estimate your leg press one-rep max from submaximal lifts.
Estimate your calf raise one-rep max from submaximal lifts.
Estimate your bicep curl one-rep max from submaximal lifts.
Estimate your tricep extension one-rep max from submaximal lifts.
Estimate your lat pulldown one-rep max from submaximal lifts.
Estimate your cable row one-rep max from submaximal lifts.
Estimate your shoulder press one-rep max from submaximal lifts.
Estimate your hip thrust one-rep max from submaximal lifts.
Estimate monthly electricity usage in kWh from your appliances.
Estimate monthly natural gas bill from usage and rate.
Estimate monthly water bill from household usage and rate.
Calculate the internet speed you need based on devices and usage.
Compare phone plan costs by data, calls, and contract length.
Compare monthly costs of popular streaming service bundles.
Estimate weekly or monthly grocery budget by household size.
Calculate meal cost per person from total ingredient costs.
Calculate per-load laundry cost including water, energy, and detergent.
Compare costs of dishwasher vs hand washing dishes.
Compare water and energy costs of showers vs baths.
Compare heating costs across fuel types for your home size.
Calculate air conditioning running cost per hour from BTU and rate.
Compare running costs of ceiling fans vs air conditioning.
Compare LED, CFL, and incandescent bulb costs over their lifetime.
Look up typical wattage for common household appliances.
Calculate annual cost of standby power from always-on devices.
Calculate wasted energy from phantom loads in your home.
Estimate savings from upgrading to Energy Star rated appliances.
Calculate return on investment for smart home device upgrades.
Estimate home warranty value vs out-of-pocket repair costs.
Estimate pest control costs by home size and treatment type.
Estimate lawn care costs by yard size and service frequency.
Estimate monthly pool maintenance costs by pool size and type.
Estimate house cleaning service costs by home size and frequency.
Convert US dollars to euros with live exchange rate reference.
Convert euros to US dollars with live exchange rate reference.
Convert US dollars to British pounds with live exchange rate reference.
Convert British pounds to US dollars with live exchange rate reference.
Convert US dollars to Japanese yen with live exchange rate reference.
Convert Japanese yen to US dollars with live exchange rate reference.
Convert US dollars to Canadian dollars with live exchange rate reference.
Convert Canadian dollars to US dollars with live exchange rate reference.
Convert US dollars to Australian dollars with live exchange rate reference.
Convert Australian dollars to US dollars with live exchange rate reference.
Convert US dollars to Swiss francs with live exchange rate reference.
Convert Swiss francs to US dollars with live exchange rate reference.
Convert euros to British pounds with live exchange rate reference.
Convert British pounds to euros with live exchange rate reference.
Convert euros to Japanese yen with live exchange rate reference.
Convert Japanese yen to euros with live exchange rate reference.
Convert US dollars to Indian rupees with live exchange rate reference.
Convert Indian rupees to US dollars with live exchange rate reference.
Convert US dollars to Chinese yuan with live exchange rate reference.
Convert Chinese yuan to US dollars with live exchange rate reference.
Convert US dollars to South Korean won with live exchange rate reference.
Convert South Korean won to US dollars with live exchange rate reference.
Convert US dollars to Brazilian real with live exchange rate reference.
Convert Brazilian real to US dollars with live exchange rate reference.
Convert US dollars to Mexican pesos with live exchange rate reference.
Instantly convert Celsius to Fahrenheit with common reference points.
Instantly convert Fahrenheit to Celsius with common reference points.
Instantly convert Celsius to Kelvin for scientific calculations.
Instantly convert Kelvin to Celsius for everyday use.
Convert Fahrenheit to Kelvin for scientific applications.
Convert Kelvin to Fahrenheit with common reference points.
Convert oven temperatures from Celsius to Fahrenheit with gas mark reference.
Convert oven temperatures from Fahrenheit to Celsius with gas mark reference.
Ideal room temperature guide for comfort, sleep, and energy savings.
Log and track temperature readings over time with chart visualization.
Convert markup percentage to profit margin percentage instantly.
Convert profit margin percentage to markup percentage instantly.
Calculate gross profit percentage from revenue and cost of goods sold.
Calculate net profit percentage from total revenue and expenses.
Calculate operating margin from operating income and revenue.
Calculate EBITDA margin from EBITDA and total revenue.
Calculate contribution margin from price and variable cost per unit.
Calculate profit margin for a single product from cost and selling price.
Calculate return on investment percentage from gain and cost.
Calculate yield percentage from annual income and investment value.
Calculate growth rate percentage between two values over time.
Calculate decline rate percentage between two values over time.
Calculate compound annual growth rate from start value, end value, and years.
Calculate inflation rate percentage from CPI values over a period.
Calculate unemployment rate from labor force and unemployed count.
Calculate effective interest rate from principal, payment, and time.
Calculate effective tax rate from total tax paid and taxable income.
Calculate discount rate for present value and DCF analysis.
Calculate premium rate percentage above a base or par value.
Calculate annual depreciation rate for assets using various methods.
Calculate annual appreciation rate for assets or property values.
Calculate resource utilization rate from actual vs available capacity.
Calculate order fill rate percentage from fulfilled and total orders.
Calculate defect rate percentage from defective and total units produced.
Calculate debt-to-income ratio from monthly debts and gross income.
Calculate inventory turnover ratio from COGS and average inventory.
Calculate accounts receivable turnover from net credit sales and avg AR.
Calculate accounts payable turnover from purchases and avg AP.
Calculate asset turnover ratio from net sales and average total assets.
Calculate gross margin ratio from gross profit and net sales.
Calculate operating ratio from operating expenses and net sales.
Calculate the perimeter of a square from its side length.
Calculate the perimeter of a rectangle from length and width.
Calculate the perimeter of a triangle from its three sides.
Calculate the circumference (perimeter) of a circle from its radius.
Calculate the perimeter of a regular polygon from side count and length.
Calculate the area of a square from its side length.
Calculate the area of a rectangle from length and width.
Calculate triangle area using base and height measurements.
Calculate triangle area from three side lengths using Heron formula.
Calculate trapezoid area from two parallel sides and height.
Calculate parallelogram area from base and height.
Calculate rhombus area from its two diagonals.
Calculate regular pentagon area from its side length.
Calculate regular hexagon area from its side length.
Calculate regular octagon area from its side length.
Calculate the area of a circle from its radius or diameter.
Calculate ellipse area from semi-major and semi-minor axes.
Calculate the area of a circular sector from radius and angle.
Calculate the area of a circular segment from radius and angle.
Calculate annulus (ring) area from inner and outer radii.
Calculate circle circumference from radius or diameter.
Calculate circle diameter from radius, circumference, or area.
Calculate circle radius from diameter, circumference, or area.
Calculate chord length from circle radius and central angle.
Calculate arc length from circle radius and central angle.
Calculate the volume of a cube from its side length.
Calculate volume of a rectangular prism from length, width, and height.
Calculate cylinder volume from radius and height.
Calculate sphere volume from its radius.
Calculate cone volume from radius and height.
Calculate pyramid volume from base area and height.
Calculate prism volume from base area and length.
Calculate ellipsoid volume from three semi-axis lengths.
Calculate torus volume from major and minor radii.
Calculate frustum volume from top radius, bottom radius, and height.
Calculate hemisphere volume from its radius.
Calculate capsule volume from radius and cylinder height.
Calculate barrel volume from top diameter, belly diameter, and height.
Calculate wedge volume from base dimensions and height.
Calculate pentagonal prism volume from side length and height.
Calculate hexagonal prism volume from side length and height.
Calculate octagonal prism volume from side length and height.
Calculate triangular prism volume from base, triangle height, and length.
Estimate irregular shape volume using water displacement method guide.
Calculate the surface area of a cube from its side length.
Calculate rectangular prism surface area from length, width, and height.
Calculate cylinder surface area from radius and height.
Calculate sphere surface area from its radius.
Calculate cone surface area from radius and slant height.
Calculate pyramid surface area from base dimensions and slant height.
Calculate the sine of an angle in degrees or radians.
Calculate the cosine of an angle in degrees or radians.
Calculate the tangent of an angle in degrees or radians.
Calculate the inverse sine (arcsine) of a value.
Calculate the inverse cosine (arccosine) of a value.
Calculate the inverse tangent (arctangent) of a value.
Calculate atan2(y, x) for two-argument arctangent with correct quadrant.
Calculate the secant of an angle in degrees or radians.
Calculate the cosecant of an angle in degrees or radians.
Calculate the cotangent of an angle in degrees or radians.
Calculate the hyperbolic sine of a value.
Calculate the hyperbolic cosine of a value.
Calculate the hyperbolic tangent of a value.
Solve triangles using the law of sines from angles and sides.
Solve triangles using the law of cosines from sides and angles.
Find Pythagorean triples and verify if three numbers form one.
Find the missing angle of a triangle from two known angles.
Calculate exterior angles of a polygon from interior angles or sides.
Find the complementary angle (sums to 90 degrees) of a given angle.
Find the supplementary angle (sums to 180 degrees) of a given angle.
Find positive and negative coterminal angles for a given angle.
Find the reference angle for any angle in standard position.
Look up sine, cosine, and tangent values on the unit circle.
Quick reference for all major trigonometric identities and formulas.
Reference guide for inverse trigonometric functions and their domains.
Solve linear equations in the form ax + b = c step by step.
Solve quadratic equations using the quadratic formula with steps.
Solve cubic equations and find all real and complex roots.
Solve systems of two or three simultaneous linear equations.
Solve linear and quadratic inequalities with solution intervals.
Solve absolute value equations and find all solutions.
Evaluate a polynomial at a given value of x.
Find roots of polynomials up to degree 4 with real and complex solutions.
Perform synthetic division of polynomials step by step.
Perform polynomial long division with quotient and remainder.
Expand binomial expressions (a+b)^n using the binomial theorem.
Generate rows of Pascal triangle and find specific coefficients.
Find terms and sum of an arithmetic sequence from first term and difference.
Find terms and sum of a geometric sequence from first term and ratio.
Generate terms of a harmonic sequence and calculate partial sums.
Calculate the sum of an arithmetic series from first term, last term, and count.
Calculate the sum of a finite geometric series from first term, ratio, and count.
Calculate the sum of an infinite geometric series when ratio is less than 1.
Find the nth term of arithmetic or geometric sequences.
Find the common difference of an arithmetic sequence from its terms.
Find the common ratio of a geometric sequence from its terms.
Identify whether a sequence is arithmetic, geometric, or neither.
Test whether an infinite series converges or diverges with common tests.
Decompose rational expressions into partial fractions step by step.
Rewrite quadratic expressions by completing the square with steps.
Compute the derivative of a function symbolically with step-by-step rules.
Compute definite and indefinite integrals with common antiderivatives.
Evaluate limits of functions as x approaches a value or infinity.
Expand a function as a Taylor series around a given point to n terms.
Expand a function as a Maclaurin series (Taylor at x=0) to n terms.
Compute partial derivatives of multivariable functions.
Calculate the gradient vector of a scalar field function.
Compute the divergence of a vector field in Cartesian coordinates.
Compute the curl of a three-dimensional vector field.
Compute the Laplacian of a scalar or vector field.
Compute the Jacobian matrix of a vector-valued function.
Compute the Hessian matrix of second-order partial derivatives.
Compute Fourier series coefficients for periodic functions.
Find the Laplace transform of common functions with tables.
Compute the Z-transform of discrete-time sequences.
Compute the convolution of two discrete or continuous signals.
Calculate the cross product of two 3D vectors.
Calculate the dot product of two vectors of any dimension.
Multiply two matrices together with step-by-step computation.
Find the inverse of a square matrix using row reduction.
Compute the determinant of matrices up to 5x5 with cofactor expansion.
Find all eigenvalues of a matrix via the characteristic polynomial.
Compute eigenvectors corresponding to given eigenvalues of a matrix.
Transpose a matrix by swapping rows and columns.
Determine the rank of a matrix using row echelon form.
Add two or more vectors component by component.
Subtract vectors component by component.
Calculate the magnitude (length) of a vector in any dimension.
Normalize a vector to unit length while preserving direction.
Compute the scalar dot product of two vectors.
Compute the cross product of two 3D vectors with direction.
Calculate the angle between two vectors using the dot product.
Project one vector onto another and find the projection components.
Find the equation of a plane from three points or a point and normal.
Find the intersection point of two lines in 2D or 3D space.
Calculate the shortest distance from a point to a line.
Calculate the shortest distance from a point to a plane.
Express a vector as a linear combination of given basis vectors.
Determine the span of a set of vectors in a vector space.
Find a basis for the vector space spanned by given vectors.
Calculate the dimension of a vector space from spanning vectors.
Find the null space (kernel) of a matrix.
Find the column space (image) of a matrix.
Find the row space of a matrix using row echelon form.
Compute the orthogonal projection of a vector onto a subspace.
Orthogonalize a set of vectors using the Gram-Schmidt process.
Decompose a matrix into orthogonal Q and upper triangular R.
Decompose a matrix into lower and upper triangular matrices.
Compute the singular value decomposition of a matrix.
Decompose a symmetric positive-definite matrix into Cholesky factors.
Find the complete prime factorization of any positive integer.
Count the total number of divisors of a positive integer.
Calculate the sum of all divisors of a positive integer.
Calculate Euler totient function phi(n) for a positive integer.
Evaluate the Mobius function mu(n) for a positive integer.
Compute the Carmichael function lambda(n) for a positive integer.
Compute the Jacobi symbol (a/n) for integers a and odd n.
Compute the Legendre symbol (a/p) for integer a and prime p.
Solve systems of simultaneous congruences using the CRT.
Find GCD and Bezout coefficients using the extended Euclidean algorithm.
Find the modular multiplicative inverse of a number modulo m.
Compute a^b mod m efficiently using fast exponentiation.
Solve the discrete logarithm problem for small moduli.
Check if a number is a quadratic residue modulo a prime.
Express a number as a continued fraction expansion.
Find fundamental solutions to the Pell equation x^2 - Dy^2 = 1.
Solve linear Diophantine equations ax + by = c for integers.
Verify Goldbach conjecture by expressing an even number as a sum of two primes.
Generate the Collatz (3n+1) sequence for any starting number.
Check whether a number is a happy number by iterating digit squares.
Check if a number equals the sum of its proper divisors.
Check if a number is abundant (divisor sum exceeds the number).
Check if a number is deficient (divisor sum is less than the number).
Check if two numbers form an amicable pair by comparing divisor sums.
Check if a number of the form 2^p - 1 is a Mersenne prime.
Calculate C(n,r) combinations for choosing r items from n.
Calculate P(n,r) permutations for arranging r items from n.
Compute factorials of large numbers with arbitrary precision.
Calculate binomial coefficients using Pascal triangle or formula.
Calculate multinomial coefficients for distributing items into groups.
Compute the nth Catalan number used in combinatorics.
Compute Stirling numbers of the first and second kind.
Compute Bell numbers counting the number of set partitions.
Count the number of derangements (permutations with no fixed points).
Calculate the probability of shared birthdays in a group of n people.
Estimate expected draws to collect all n distinct items.
Calculate ruin probability in a random walk gambling model.
Simulate and visualize 1D and 2D random walks with statistics.
Compute state probabilities for simple discrete Markov chains.
Apply Bayes theorem to calculate posterior probabilities.
Calculate conditional probability P(A|B) from joint and marginal data.
Calculate joint probability of two events occurring together.
Calculate marginal probabilities from a joint probability table.
Compute the expected value of a discrete random variable.
Compute the variance of a discrete probability distribution.
Compute the covariance between two random variables.
Compute moments from a moment generating function.
Evaluate the characteristic function of common distributions.
Calculate Shannon entropy of a discrete probability distribution.
Compute mutual information between two random variables.
Safe internal temperatures for beef steaks, roasts, and ground beef by doneness level.
Safe internal temperatures for pork chops, tenderloin, ribs, and ground pork.
Safe internal temperatures for whole chicken, breasts, thighs, and wings.
Safe internal temperatures for whole turkey, breast, and ground turkey.
Safe internal temperatures for salmon, tuna, cod, and other fish varieties.
Safe internal temperatures for lamb chops, leg, rack, and ground lamb.
Safe internal temperatures for veal chops, roasts, and cutlets by doneness.
Safe internal temperatures for whole duck, duck breast, and duck legs.
Safe internal temperatures for venison steaks, roasts, and ground venison.
Safe internal temperatures for bison steaks, burgers, and roasts by doneness.
Safe internal temperatures and visual cues for properly cooked shrimp.
Safe internal temperatures for lobster tails, claws, and whole lobster.
Safe internal temperatures and cooking times for crab legs and whole crab.
Safe internal temperatures and searing tips for sea and bay scallops.
Safe temperatures for baked, grilled, and fried oysters with timing guides.
Temperatures and times for soft-boiled, hard-boiled, poached, and fried eggs.
Oven temperatures and internal temps for white, wheat, sourdough, and rye breads.
Oven temperatures and bake times for layer cakes, pound cakes, and cupcakes.
Oven temperatures and times for chewy, crispy, and cakey cookie styles.
Oven temperatures and bake times for fruit, cream, and savory pies.
Temperatures for home oven, pizza steel, pizza stone, and wood-fired pizza.
Oven temperatures and times for roasting vegetables, meats, and poultry.
Grill zone temperatures for direct and indirect heat cooking methods.
Smoker temperatures and cook times for brisket, ribs, pork shoulder, and more.
Sous vide water bath temperatures and times for meats, eggs, and vegetables.
Convert meters to km with formula, examples and copy-paste output. Browser-side, instant.
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Convert kilograms to g for cooking, shipping and lab work. Formula + history pane.
Convert kilograms to mg for cooking, shipping and lab work. Formula + history pane.
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Convert grams to kg for cooking, shipping and lab work. Formula + history pane.
Convert grams to mg for cooking, shipping and lab work. Formula + history pane.
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Convert milligrams to kg for cooking, shipping and lab work. Formula + history pane.
Convert milligrams to g for cooking, shipping and lab work. Formula + history pane.
Convert milligrams to lb for cooking, shipping and lab work. Formula + history pane.
Convert milligrams to oz for cooking, shipping and lab work. Formula + history pane.
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Convert pounds to kg for cooking, shipping and lab work. Formula + history pane.
Convert pounds to g for cooking, shipping and lab work. Formula + history pane.
Convert pounds to mg for cooking, shipping and lab work. Formula + history pane.
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Convert ounces to kg for cooking, shipping and lab work. Formula + history pane.
Convert ounces to g for cooking, shipping and lab work. Formula + history pane.
Convert ounces to mg for cooking, shipping and lab work. Formula + history pane.
Convert ounces to lb for cooking, shipping and lab work. Formula + history pane.
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Convert tons to kg for cooking, shipping and lab work. Formula + history pane.
Convert tons to g for cooking, shipping and lab work. Formula + history pane.
Convert tons to mg for cooking, shipping and lab work. Formula + history pane.
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Convert stones to kg for cooking, shipping and lab work. Formula + history pane.
Convert stones to g for cooking, shipping and lab work. Formula + history pane.
Convert stones to mg for cooking, shipping and lab work. Formula + history pane.
Convert stones to lb for cooking, shipping and lab work. Formula + history pane.
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Convert stones to ct for cooking, shipping and lab work. Formula + history pane.
Convert carats to kg for cooking, shipping and lab work. Formula + history pane.
Convert carats to g for cooking, shipping and lab work. Formula + history pane.
Convert carats to mg for cooking, shipping and lab work. Formula + history pane.
Convert carats to lb for cooking, shipping and lab work. Formula + history pane.
Convert carats to oz for cooking, shipping and lab work. Formula + history pane.
Convert carats to ton for cooking, shipping and lab work. Formula + history pane.
Convert carats to stone for cooking, shipping and lab work. Formula + history pane.
Volume converter from liters to ml for cooking, brewing and lab.
Volume converter from liters to gal-us for cooking, brewing and lab.
Volume converter from liters to gal-uk for cooking, brewing and lab.
Volume converter from liters to cup for cooking, brewing and lab.
Volume converter from liters to tsp for cooking, brewing and lab.
Volume converter from liters to tbsp for cooking, brewing and lab.
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Volume converter from liters to m3 for cooking, brewing and lab.
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Volume converter from liters to barrel for cooking, brewing and lab.
Volume converter from milliliters to l for cooking, brewing and lab.
Volume converter from milliliters to gal-us for cooking, brewing and lab.
Volume converter from milliliters to gal-uk for cooking, brewing and lab.
Volume converter from milliliters to cup for cooking, brewing and lab.
Volume converter from milliliters to tsp for cooking, brewing and lab.
Volume converter from milliliters to tbsp for cooking, brewing and lab.
Volume converter from milliliters to floz for cooking, brewing and lab.
Volume converter from milliliters to m3 for cooking, brewing and lab.
Volume converter from milliliters to ft3 for cooking, brewing and lab.
Volume converter from milliliters to barrel for cooking, brewing and lab.
Volume converter from us-gallons to l for cooking, brewing and lab.
Volume converter from us-gallons to ml for cooking, brewing and lab.
Volume converter from us-gallons to gal-uk for cooking, brewing and lab.
Volume converter from us-gallons to cup for cooking, brewing and lab.
Volume converter from us-gallons to tsp for cooking, brewing and lab.
Volume converter from us-gallons to tbsp for cooking, brewing and lab.
Volume converter from us-gallons to floz for cooking, brewing and lab.
Volume converter from us-gallons to m3 for cooking, brewing and lab.
Volume converter from us-gallons to ft3 for cooking, brewing and lab.
Volume converter from us-gallons to barrel for cooking, brewing and lab.
Volume converter from uk-gallons to l for cooking, brewing and lab.
Volume converter from uk-gallons to ml for cooking, brewing and lab.
Volume converter from uk-gallons to gal-us for cooking, brewing and lab.
Volume converter from uk-gallons to cup for cooking, brewing and lab.
Volume converter from uk-gallons to tsp for cooking, brewing and lab.
Volume converter from uk-gallons to tbsp for cooking, brewing and lab.
Volume converter from uk-gallons to floz for cooking, brewing and lab.
Volume converter from uk-gallons to m3 for cooking, brewing and lab.
Volume converter from uk-gallons to ft3 for cooking, brewing and lab.
Volume converter from uk-gallons to barrel for cooking, brewing and lab.
Volume converter from cups to l for cooking, brewing and lab.
Volume converter from cups to ml for cooking, brewing and lab.
Volume converter from cups to gal-us for cooking, brewing and lab.
Volume converter from cups to gal-uk for cooking, brewing and lab.
Volume converter from cups to tsp for cooking, brewing and lab.
Volume converter from cups to tbsp for cooking, brewing and lab.
Volume converter from cups to floz for cooking, brewing and lab.
Volume converter from cups to m3 for cooking, brewing and lab.
Volume converter from cups to ft3 for cooking, brewing and lab.
Volume converter from cups to barrel for cooking, brewing and lab.
Volume converter from teaspoons to l for cooking, brewing and lab.
Volume converter from teaspoons to ml for cooking, brewing and lab.
Volume converter from teaspoons to gal-us for cooking, brewing and lab.
Volume converter from teaspoons to gal-uk for cooking, brewing and lab.
Volume converter from teaspoons to cup for cooking, brewing and lab.
Volume converter from teaspoons to tbsp for cooking, brewing and lab.
Volume converter from teaspoons to floz for cooking, brewing and lab.
Volume converter from teaspoons to m3 for cooking, brewing and lab.
Volume converter from teaspoons to ft3 for cooking, brewing and lab.
Volume converter from teaspoons to barrel for cooking, brewing and lab.
Volume converter from tablespoons to l for cooking, brewing and lab.
Volume converter from tablespoons to ml for cooking, brewing and lab.
Volume converter from tablespoons to gal-us for cooking, brewing and lab.
Volume converter from tablespoons to gal-uk for cooking, brewing and lab.
Volume converter from tablespoons to cup for cooking, brewing and lab.
Volume converter from tablespoons to tsp for cooking, brewing and lab.
Volume converter from tablespoons to floz for cooking, brewing and lab.
Volume converter from tablespoons to m3 for cooking, brewing and lab.
Volume converter from tablespoons to ft3 for cooking, brewing and lab.
Volume converter from tablespoons to barrel for cooking, brewing and lab.
Volume converter from fluid-ounces to l for cooking, brewing and lab.
Volume converter from fluid-ounces to ml for cooking, brewing and lab.
Volume converter from fluid-ounces to gal-us for cooking, brewing and lab.
Volume converter from fluid-ounces to gal-uk for cooking, brewing and lab.
Volume converter from fluid-ounces to cup for cooking, brewing and lab.
Volume converter from fluid-ounces to tsp for cooking, brewing and lab.
Volume converter from fluid-ounces to tbsp for cooking, brewing and lab.
Volume converter from fluid-ounces to m3 for cooking, brewing and lab.
Volume converter from fluid-ounces to ft3 for cooking, brewing and lab.
Volume converter from fluid-ounces to barrel for cooking, brewing and lab.
Volume converter from cubic-meters to l for cooking, brewing and lab.
Volume converter from cubic-meters to ml for cooking, brewing and lab.
Volume converter from cubic-meters to gal-us for cooking, brewing and lab.
Volume converter from cubic-meters to gal-uk for cooking, brewing and lab.
Volume converter from cubic-meters to cup for cooking, brewing and lab.
Volume converter from cubic-meters to tsp for cooking, brewing and lab.
Volume converter from cubic-meters to tbsp for cooking, brewing and lab.
Volume converter from cubic-meters to floz for cooking, brewing and lab.
Volume converter from cubic-meters to ft3 for cooking, brewing and lab.
Volume converter from cubic-meters to barrel for cooking, brewing and lab.
Volume converter from cubic-feet to l for cooking, brewing and lab.
Volume converter from cubic-feet to ml for cooking, brewing and lab.
Volume converter from cubic-feet to gal-us for cooking, brewing and lab.
Volume converter from cubic-feet to gal-uk for cooking, brewing and lab.
Volume converter from cubic-feet to cup for cooking, brewing and lab.
Volume converter from cubic-feet to tsp for cooking, brewing and lab.
Volume converter from cubic-feet to tbsp for cooking, brewing and lab.
Volume converter from cubic-feet to floz for cooking, brewing and lab.
Volume converter from cubic-feet to m3 for cooking, brewing and lab.
Volume converter from cubic-feet to barrel for cooking, brewing and lab.
Volume converter from barrels to l for cooking, brewing and lab.
Volume converter from barrels to ml for cooking, brewing and lab.
Volume converter from barrels to gal-us for cooking, brewing and lab.
Volume converter from barrels to gal-uk for cooking, brewing and lab.
Volume converter from barrels to cup for cooking, brewing and lab.
Volume converter from barrels to tsp for cooking, brewing and lab.
Volume converter from barrels to tbsp for cooking, brewing and lab.
Volume converter from barrels to floz for cooking, brewing and lab.
Volume converter from barrels to m3 for cooking, brewing and lab.
Volume converter from barrels to ft3 for cooking, brewing and lab.
Temperature converter from celsius to f. Formula and reference table.
Temperature converter from celsius to k. Formula and reference table.
Temperature converter from celsius to r. Formula and reference table.
Temperature converter from fahrenheit to c. Formula and reference table.
Temperature converter from fahrenheit to k. Formula and reference table.
Temperature converter from fahrenheit to r. Formula and reference table.
Temperature converter from kelvin to c. Formula and reference table.
Temperature converter from kelvin to f. Formula and reference table.
Temperature converter from kelvin to r. Formula and reference table.
Temperature converter from rankine to c. Formula and reference table.
Temperature converter from rankine to f. Formula and reference table.
Temperature converter from rankine to k. Formula and reference table.
Convert times between UTC and GMT with DST awareness. Quick lookup + meeting planner.
Convert times between UTC and EST with DST awareness. Quick lookup + meeting planner.
Convert times between UTC and PST with DST awareness. Quick lookup + meeting planner.
Convert times between UTC and CET with DST awareness. Quick lookup + meeting planner.
Convert times between UTC and JST with DST awareness. Quick lookup + meeting planner.
Convert times between UTC and AEST with DST awareness. Quick lookup + meeting planner.
Convert times between UTC and CST-CHINA with DST awareness. Quick lookup + meeting planner.
Convert times between UTC and IST-INDIA with DST awareness. Quick lookup + meeting planner.
Convert times between UTC and MSK-MOSCOW with DST awareness. Quick lookup + meeting planner.
Convert times between UTC and BRT-BRAZIL with DST awareness. Quick lookup + meeting planner.
Convert times between UTC and SAST-SOUTH-AFRICA with DST awareness. Quick lookup + meeting planner.
Convert times between GMT and UTC with DST awareness. Quick lookup + meeting planner.
Convert times between GMT and EST with DST awareness. Quick lookup + meeting planner.
Convert times between GMT and PST with DST awareness. Quick lookup + meeting planner.
Convert times between GMT and CET with DST awareness. Quick lookup + meeting planner.
Convert times between GMT and JST with DST awareness. Quick lookup + meeting planner.
Convert times between GMT and AEST with DST awareness. Quick lookup + meeting planner.
Convert times between GMT and CST-CHINA with DST awareness. Quick lookup + meeting planner.
Convert times between GMT and IST-INDIA with DST awareness. Quick lookup + meeting planner.
Convert times between GMT and MSK-MOSCOW with DST awareness. Quick lookup + meeting planner.
Convert times between GMT and BRT-BRAZIL with DST awareness. Quick lookup + meeting planner.
Convert times between GMT and SAST-SOUTH-AFRICA with DST awareness. Quick lookup + meeting planner.
Convert times between EST and UTC with DST awareness. Quick lookup + meeting planner.
Convert times between EST and GMT with DST awareness. Quick lookup + meeting planner.
Convert times between EST and PST with DST awareness. Quick lookup + meeting planner.
Convert times between EST and CET with DST awareness. Quick lookup + meeting planner.
Convert times between EST and JST with DST awareness. Quick lookup + meeting planner.
Convert times between EST and AEST with DST awareness. Quick lookup + meeting planner.
Convert times between EST and CST-CHINA with DST awareness. Quick lookup + meeting planner.
Convert times between EST and IST-INDIA with DST awareness. Quick lookup + meeting planner.
Convert times between EST and MSK-MOSCOW with DST awareness. Quick lookup + meeting planner.
Convert times between EST and BRT-BRAZIL with DST awareness. Quick lookup + meeting planner.
Convert times between EST and SAST-SOUTH-AFRICA with DST awareness. Quick lookup + meeting planner.
Convert times between PST and UTC with DST awareness. Quick lookup + meeting planner.
Convert times between PST and GMT with DST awareness. Quick lookup + meeting planner.
Convert times between PST and EST with DST awareness. Quick lookup + meeting planner.
Convert times between PST and CET with DST awareness. Quick lookup + meeting planner.
Convert times between PST and JST with DST awareness. Quick lookup + meeting planner.
Convert times between PST and AEST with DST awareness. Quick lookup + meeting planner.
Convert times between PST and CST-CHINA with DST awareness. Quick lookup + meeting planner.
Convert times between PST and IST-INDIA with DST awareness. Quick lookup + meeting planner.
Convert times between PST and MSK-MOSCOW with DST awareness. Quick lookup + meeting planner.
Convert times between PST and BRT-BRAZIL with DST awareness. Quick lookup + meeting planner.
Convert times between PST and SAST-SOUTH-AFRICA with DST awareness. Quick lookup + meeting planner.
Convert times between CET and UTC with DST awareness. Quick lookup + meeting planner.
Convert times between CET and GMT with DST awareness. Quick lookup + meeting planner.
Convert times between CET and EST with DST awareness. Quick lookup + meeting planner.
Convert times between CET and PST with DST awareness. Quick lookup + meeting planner.
Convert times between CET and JST with DST awareness. Quick lookup + meeting planner.
Convert times between CET and AEST with DST awareness. Quick lookup + meeting planner.
Convert times between CET and CST-CHINA with DST awareness. Quick lookup + meeting planner.
Convert times between CET and IST-INDIA with DST awareness. Quick lookup + meeting planner.
Convert times between CET and MSK-MOSCOW with DST awareness. Quick lookup + meeting planner.
Convert times between CET and BRT-BRAZIL with DST awareness. Quick lookup + meeting planner.
Convert times between CET and SAST-SOUTH-AFRICA with DST awareness. Quick lookup + meeting planner.
Convert times between JST and UTC with DST awareness. Quick lookup + meeting planner.
Convert times between JST and GMT with DST awareness. Quick lookup + meeting planner.
Convert times between JST and EST with DST awareness. Quick lookup + meeting planner.
Convert times between JST and PST with DST awareness. Quick lookup + meeting planner.
Convert times between JST and CET with DST awareness. Quick lookup + meeting planner.
Convert times between JST and AEST with DST awareness. Quick lookup + meeting planner.
Convert times between JST and CST-CHINA with DST awareness. Quick lookup + meeting planner.
Convert times between JST and IST-INDIA with DST awareness. Quick lookup + meeting planner.
Convert times between JST and MSK-MOSCOW with DST awareness. Quick lookup + meeting planner.
Convert times between JST and BRT-BRAZIL with DST awareness. Quick lookup + meeting planner.
Convert times between JST and SAST-SOUTH-AFRICA with DST awareness. Quick lookup + meeting planner.
Convert times between AEST and UTC with DST awareness. Quick lookup + meeting planner.
Convert times between AEST and GMT with DST awareness. Quick lookup + meeting planner.
Convert times between AEST and EST with DST awareness. Quick lookup + meeting planner.
Convert times between AEST and PST with DST awareness. Quick lookup + meeting planner.
Convert times between AEST and CET with DST awareness. Quick lookup + meeting planner.
Convert times between AEST and JST with DST awareness. Quick lookup + meeting planner.
Convert times between AEST and CST-CHINA with DST awareness. Quick lookup + meeting planner.
Convert times between AEST and IST-INDIA with DST awareness. Quick lookup + meeting planner.
Convert times between AEST and MSK-MOSCOW with DST awareness. Quick lookup + meeting planner.
Convert times between AEST and BRT-BRAZIL with DST awareness. Quick lookup + meeting planner.
Convert times between AEST and SAST-SOUTH-AFRICA with DST awareness. Quick lookup + meeting planner.
Convert times between CST-CHINA and UTC with DST awareness. Quick lookup + meeting planner.
Convert times between CST-CHINA and GMT with DST awareness. Quick lookup + meeting planner.
Convert times between CST-CHINA and EST with DST awareness. Quick lookup + meeting planner.
Convert times between CST-CHINA and PST with DST awareness. Quick lookup + meeting planner.
Convert times between CST-CHINA and CET with DST awareness. Quick lookup + meeting planner.
Convert times between CST-CHINA and JST with DST awareness. Quick lookup + meeting planner.
Convert times between CST-CHINA and AEST with DST awareness. Quick lookup + meeting planner.
Convert times between CST-CHINA and IST-INDIA with DST awareness. Quick lookup + meeting planner.
Convert times between CST-CHINA and MSK-MOSCOW with DST awareness. Quick lookup + meeting planner.
Convert times between CST-CHINA and BRT-BRAZIL with DST awareness. Quick lookup + meeting planner.
Convert times between CST-CHINA and SAST-SOUTH-AFRICA with DST awareness. Quick lookup + meeting planner.
Convert times between IST-INDIA and UTC with DST awareness. Quick lookup + meeting planner.
Convert times between IST-INDIA and GMT with DST awareness. Quick lookup + meeting planner.
Convert times between IST-INDIA and EST with DST awareness. Quick lookup + meeting planner.
Convert times between IST-INDIA and PST with DST awareness. Quick lookup + meeting planner.
Convert times between IST-INDIA and CET with DST awareness. Quick lookup + meeting planner.
Convert times between IST-INDIA and JST with DST awareness. Quick lookup + meeting planner.
Convert times between IST-INDIA and AEST with DST awareness. Quick lookup + meeting planner.
Convert times between IST-INDIA and CST-CHINA with DST awareness. Quick lookup + meeting planner.
Convert times between IST-INDIA and MSK-MOSCOW with DST awareness. Quick lookup + meeting planner.
Convert times between IST-INDIA and BRT-BRAZIL with DST awareness. Quick lookup + meeting planner.
Convert times between IST-INDIA and SAST-SOUTH-AFRICA with DST awareness. Quick lookup + meeting planner.
Convert times between MSK-MOSCOW and UTC with DST awareness. Quick lookup + meeting planner.
Convert times between MSK-MOSCOW and GMT with DST awareness. Quick lookup + meeting planner.
Convert times between MSK-MOSCOW and EST with DST awareness. Quick lookup + meeting planner.
Convert times between MSK-MOSCOW and PST with DST awareness. Quick lookup + meeting planner.
Convert times between MSK-MOSCOW and CET with DST awareness. Quick lookup + meeting planner.
Convert times between MSK-MOSCOW and JST with DST awareness. Quick lookup + meeting planner.
Convert times between MSK-MOSCOW and AEST with DST awareness. Quick lookup + meeting planner.
Convert times between MSK-MOSCOW and CST-CHINA with DST awareness. Quick lookup + meeting planner.
Convert times between MSK-MOSCOW and IST-INDIA with DST awareness. Quick lookup + meeting planner.
Convert times between MSK-MOSCOW and BRT-BRAZIL with DST awareness. Quick lookup + meeting planner.
Convert times between MSK-MOSCOW and SAST-SOUTH-AFRICA with DST awareness. Quick lookup + meeting planner.
Convert times between BRT-BRAZIL and UTC with DST awareness. Quick lookup + meeting planner.
Convert times between BRT-BRAZIL and GMT with DST awareness. Quick lookup + meeting planner.
Convert times between BRT-BRAZIL and EST with DST awareness. Quick lookup + meeting planner.
Convert times between BRT-BRAZIL and PST with DST awareness. Quick lookup + meeting planner.
Convert times between BRT-BRAZIL and CET with DST awareness. Quick lookup + meeting planner.
Convert times between BRT-BRAZIL and JST with DST awareness. Quick lookup + meeting planner.
Convert times between BRT-BRAZIL and AEST with DST awareness. Quick lookup + meeting planner.
Convert times between BRT-BRAZIL and CST-CHINA with DST awareness. Quick lookup + meeting planner.
Convert times between BRT-BRAZIL and IST-INDIA with DST awareness. Quick lookup + meeting planner.
Convert times between BRT-BRAZIL and MSK-MOSCOW with DST awareness. Quick lookup + meeting planner.
Convert times between BRT-BRAZIL and SAST-SOUTH-AFRICA with DST awareness. Quick lookup + meeting planner.
Convert times between SAST-SOUTH-AFRICA and UTC with DST awareness. Quick lookup + meeting planner.
Convert times between SAST-SOUTH-AFRICA and GMT with DST awareness. Quick lookup + meeting planner.
Convert times between SAST-SOUTH-AFRICA and EST with DST awareness. Quick lookup + meeting planner.
Convert times between SAST-SOUTH-AFRICA and PST with DST awareness. Quick lookup + meeting planner.
Convert times between SAST-SOUTH-AFRICA and CET with DST awareness. Quick lookup + meeting planner.
Convert times between SAST-SOUTH-AFRICA and JST with DST awareness. Quick lookup + meeting planner.
Convert times between SAST-SOUTH-AFRICA and AEST with DST awareness. Quick lookup + meeting planner.
Convert times between SAST-SOUTH-AFRICA and CST-CHINA with DST awareness. Quick lookup + meeting planner.
Convert times between SAST-SOUTH-AFRICA and IST-INDIA with DST awareness. Quick lookup + meeting planner.
Convert times between SAST-SOUTH-AFRICA and MSK-MOSCOW with DST awareness. Quick lookup + meeting planner.
Convert times between SAST-SOUTH-AFRICA and BRT-BRAZIL with DST awareness. Quick lookup + meeting planner.
Days Between Dates — instant browser-side calculation, no server, copy-paste output.
Business Days Between — instant browser-side calculation, no server, copy-paste output.
Add Days Calculator — instant browser-side calculation, no server, copy-paste output.
Subtract Days Calculator — instant browser-side calculation, no server, copy-paste output.
Weeks Between Dates — instant browser-side calculation, no server, copy-paste output.
Months Between Dates — instant browser-side calculation, no server, copy-paste output.
Years Between Dates — instant browser-side calculation, no server, copy-paste output.
Date Difference Iso — instant browser-side calculation, no server, copy-paste output.
Date Format Converter — instant browser-side calculation, no server, copy-paste output.
Iso To Unix Timestamp — instant browser-side calculation, no server, copy-paste output.
Unix To Iso Timestamp — instant browser-side calculation, no server, copy-paste output.
Rfc 2822 Date Builder — instant browser-side calculation, no server, copy-paste output.
Gregorian To Julian Date — instant browser-side calculation, no server, copy-paste output.
Julian To Gregorian Date — instant browser-side calculation, no server, copy-paste output.
Week Number Calculator — instant browser-side calculation, no server, copy-paste output.
Day Of Year Calculator — instant browser-side calculation, no server, copy-paste output.
Leap Year Checker — instant browser-side calculation, no server, copy-paste output.
Easter Date Calculator — instant browser-side calculation, no server, copy-paste output.
Workday Add Calculator — instant browser-side calculation, no server, copy-paste output.
Next Friday The 13th — instant browser-side calculation, no server, copy-paste output.
Birthday Calculator — instant browser-side calculation, no server, copy-paste output.
Retirement Date Calculator — instant browser-side calculation, no server, copy-paste output.
Lease End Date Calculator — instant browser-side calculation, no server, copy-paste output.
Subscription Renewal Date — instant browser-side calculation, no server, copy-paste output.
Pregnancy Due Date Iso — instant browser-side calculation, no server, copy-paste output.
Project Deadline Date — instant browser-side calculation, no server, copy-paste output.
Fiscal Year Calculator — instant browser-side calculation, no server, copy-paste output.
School Term Date Calculator — instant browser-side calculation, no server, copy-paste output.
Tax Deadline By Country — instant browser-side calculation, no server, copy-paste output.
Visa Expiry Date — instant browser-side calculation, no server, copy-paste output.
Cron Next Fire Date — instant browser-side calculation, no server, copy-paste output.
Rrule Next Occurrence — instant browser-side calculation, no server, copy-paste output.
Time From Now Calculator — instant browser-side calculation, no server, copy-paste output.
Time Ago Calculator — instant browser-side calculation, no server, copy-paste output.
Iso Week Date Converter — instant browser-side calculation, no server, copy-paste output.
Unix Millis Converter — instant browser-side calculation, no server, copy-paste output.
Us Date To Eu — instant browser-side calculation, no server, copy-paste output.
Eu Date To Us — instant browser-side calculation, no server, copy-paste output.
Date To Words — instant browser-side calculation, no server, copy-paste output.
Words To Date — instant browser-side calculation, no server, copy-paste output.
Convert numbers from binary to octal. Bulk-paste support, copy table.
Convert numbers from binary to decimal. Bulk-paste support, copy table.
Convert numbers from binary to hexadecimal. Bulk-paste support, copy table.
Convert numbers from binary to base32. Bulk-paste support, copy table.
Convert numbers from binary to base36. Bulk-paste support, copy table.
Convert numbers from binary to base58. Bulk-paste support, copy table.
Convert numbers from binary to base62. Bulk-paste support, copy table.
Convert numbers from octal to binary. Bulk-paste support, copy table.
Convert numbers from octal to decimal. Bulk-paste support, copy table.
Convert numbers from octal to hexadecimal. Bulk-paste support, copy table.
Convert numbers from octal to base32. Bulk-paste support, copy table.
Convert numbers from octal to base36. Bulk-paste support, copy table.
Convert numbers from octal to base58. Bulk-paste support, copy table.
Convert numbers from octal to base62. Bulk-paste support, copy table.
Convert numbers from decimal to binary. Bulk-paste support, copy table.
Convert numbers from decimal to octal. Bulk-paste support, copy table.
Convert numbers from decimal to hexadecimal. Bulk-paste support, copy table.
Convert numbers from decimal to base32. Bulk-paste support, copy table.
Convert numbers from decimal to base36. Bulk-paste support, copy table.
Convert numbers from decimal to base58. Bulk-paste support, copy table.
Convert numbers from decimal to base62. Bulk-paste support, copy table.
Convert numbers from hexadecimal to binary. Bulk-paste support, copy table.
Convert numbers from hexadecimal to octal. Bulk-paste support, copy table.
Convert numbers from hexadecimal to decimal. Bulk-paste support, copy table.
Convert numbers from hexadecimal to base32. Bulk-paste support, copy table.
Convert numbers from hexadecimal to base36. Bulk-paste support, copy table.
Convert numbers from hexadecimal to base58. Bulk-paste support, copy table.
Convert numbers from hexadecimal to base62. Bulk-paste support, copy table.
Convert numbers from base32 to binary. Bulk-paste support, copy table.
Convert numbers from base32 to octal. Bulk-paste support, copy table.
Convert numbers from base32 to decimal. Bulk-paste support, copy table.
Convert numbers from base32 to hexadecimal. Bulk-paste support, copy table.
Convert numbers from base32 to base36. Bulk-paste support, copy table.
Convert numbers from base32 to base58. Bulk-paste support, copy table.
Convert numbers from base32 to base62. Bulk-paste support, copy table.
Convert numbers from base36 to binary. Bulk-paste support, copy table.
Convert numbers from base36 to octal. Bulk-paste support, copy table.
Convert numbers from base36 to decimal. Bulk-paste support, copy table.
Convert numbers from base36 to hexadecimal. Bulk-paste support, copy table.
Convert numbers from base36 to base32. Bulk-paste support, copy table.
Convert numbers from base36 to base58. Bulk-paste support, copy table.
Convert numbers from base36 to base62. Bulk-paste support, copy table.
Convert numbers from base58 to binary. Bulk-paste support, copy table.
Convert numbers from base58 to octal. Bulk-paste support, copy table.
Convert numbers from base58 to decimal. Bulk-paste support, copy table.
Convert numbers from base58 to hexadecimal. Bulk-paste support, copy table.
Convert numbers from base58 to base32. Bulk-paste support, copy table.
Convert numbers from base58 to base36. Bulk-paste support, copy table.
Convert numbers from base58 to base62. Bulk-paste support, copy table.
Convert numbers from base62 to binary. Bulk-paste support, copy table.
Convert numbers from base62 to octal. Bulk-paste support, copy table.
Convert numbers from base62 to decimal. Bulk-paste support, copy table.
Convert numbers from base62 to hexadecimal. Bulk-paste support, copy table.
Convert numbers from base62 to base32. Bulk-paste support, copy table.
Convert numbers from base62 to base36. Bulk-paste support, copy table.
Convert numbers from base62 to base58. Bulk-paste support, copy table.
Roman Numeral Converter with copy-paste output and reference table.
Arabic To Roman with copy-paste output and reference table.
Roman To Arabic with copy-paste output and reference table.
Spelled Out Number Converter with copy-paste output and reference table.
Number To Words English with copy-paste output and reference table.
Number To Words French with copy-paste output and reference table.
Number To Words Spanish with copy-paste output and reference table.
Number To Words German with copy-paste output and reference table.
Words To Number English with copy-paste output and reference table.
Fraction To Decimal with copy-paste output and reference table.
Decimal To Fraction with copy-paste output and reference table.
Percent To Decimal with copy-paste output and reference table.
Decimal To Percent with copy-paste output and reference table.
Scientific Notation Converter with copy-paste output and reference table.
Engineering Notation Converter with copy-paste output and reference table.
Binary Coded Decimal with copy-paste output and reference table.
Gray Code Converter with copy-paste output and reference table.
Bcd To Binary with copy-paste output and reference table.
Twos Complement Calculator with copy-paste output and reference table.
Ones Complement Calculator with copy-paste output and reference table.
Lat Lon To Utm — works fully offline once loaded.
Utm To Lat Lon — works fully offline once loaded.
Lat Lon To Mgrs — works fully offline once loaded.
Mgrs To Lat Lon — works fully offline once loaded.
Lat Lon To Plus Codes — works fully offline once loaded.
Plus Codes To Lat Lon — works fully offline once loaded.
Lat Lon To Geohash — works fully offline once loaded.
Geohash To Lat Lon — works fully offline once loaded.
Wgs84 To Nad83 — works fully offline once loaded.
Nad83 To Wgs84 — works fully offline once loaded.
Haversine Distance — works fully offline once loaded.
Bearing Calculator — works fully offline once loaded.
Midpoint Calculator — works fully offline once loaded.
Destination Point From Bearing — works fully offline once loaded.
Route Distance Multi Stop — works fully offline once loaded.
Time Zone From Coords — works fully offline once loaded.
Sunrise Sunset Calculator — works fully offline once loaded.
Moon Phase Calculator — works fully offline once loaded.
Magnetic Declination Calculator — works fully offline once loaded.
Compass Deviation Calculator — works fully offline once loaded.
Lat Lon To Mercator — works fully offline once loaded.
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Lat Lon To Bing Quadkey — works fully offline once loaded.
Bing Quadkey Decoder — works fully offline once loaded.
Iso Country Code Lookup — works fully offline once loaded.
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Phone Country Prefix — works fully offline once loaded.
Currency By Country — works fully offline once loaded.
Capital City Lookup — works fully offline once loaded.
Population By Country — works fully offline once loaded.
Gdp By Country — works fully offline once loaded.
Flag Emoji By Country — works fully offline once loaded.
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Time Zones By Country — works fully offline once loaded.
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H3 Cell Encoder — works fully offline once loaded.
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Qth Locator Converter — works fully offline once loaded.
Maidenhead Grid — works fully offline once loaded.
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Algebra flashcards for high-school and college students.
Algebra quiz generator for high-school and college students.
Algebra study plan for high-school and college students.
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Geometry flashcards for high-school and college students.
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Trigonometry quiz generator for high-school and college students.
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Calculus flashcards for high-school and college students.
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Live list of public holidays for 24 countries — pick country and year. Powered by date.nager.at.
Capital, currency, languages, area, population, timezones, borders, drives-on-side. Live REST Countries API.
Live multi-timezone clock — add any city. Browser-side via Intl.DateTimeFormat, no API needed.
Learn how to calculate your exact age in years, months, and days. Covers age calculation methods, leap year handling, and practical uses for age data.
Understand Body Mass Index, how it is calculated, what the categories mean, and the limitations of BMI as a health metric. Free online BMI calculator included.
Learn how to calculate the number of days between two dates, add or subtract days from a date, and handle date math for deadlines, projects, and planning.
Master percentage calculations with clear formulas and examples. Covers finding percentages, percentage change, markup, discount, and tip calculations.
Convert between hourly, weekly, monthly, and yearly salary figures. Understand the math behind salary conversions, tax considerations, and how benefits affect total compensation.
Calculate tips for restaurants, services, and delivery. Understand tipping norms by country, split bills among groups, and learn when to adjust your tip percentage.
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