Common PresetsCustom Ratios100% Private

1920 x 1080

16:9

How It Works

1

Pick Ratio

Select a preset or enter a custom aspect ratio.

2

Enter Dimension

Type width or height in pixels.

3

Get Result

The other dimension is calculated automatically.

Frequently Asked Questions

What aspect ratios are supported?
Common presets include 16:9, 4:3, 1:1, 21:9, 9:16, 3:2, and 2:1. You can also enter a custom ratio.
How does it calculate?
Enter either width or height. The other dimension is calculated based on the selected aspect ratio.
What is this useful for?
Designing responsive layouts, video embeds, image cropping, and screen resolution calculations.
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About Aspect Ratio

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.

Why use this tool

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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