Brzycki
112.5
kg
Epley
116.7
kg
Lombardi
117.5
kg
Average 1RM
114.8
kg
Percentage Table (based on average)
100%
114.8
kg
95%
109.0
kg
90%
103.3
kg
85%
97.6
kg
80%
91.8
kg
75%
86.1
kg
70%
80.3
kg
65%
74.6
kg
60%
68.9
kg
55%
63.1
kg
50%
57.4
kg
How It Works
Enter Lift
Weight and reps.
Calculate
Multiple formulas.
View Table
Percentage breakdown.
About 1RM Calc
What this tool does
General-purpose calculators cover percentages, dates, time differences, BMI, tips, taxes, salaries, loans, compound interest, and dozens of everyday math problems. Results are computed instantly in the browser.
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Quick calculations come up constantly: splitting a bill, figuring out how many days until a deadline, converting an hourly rate to an annual salary. Having a purpose-built calculator is faster and less error-prone than a spreadsheet.
How it works
Each calculator applies the relevant mathematical formula to your inputs. Financial calculators use standard amortization and compound-interest equations. Date calculators leverage JavaScript's Date object with timezone-aware arithmetic.
Pro tip
For loan and mortgage calculations, small changes in interest rate matter more than you think. Try adjusting the rate by 0.25% to see how it affects total interest paid over the life of the loan.
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