How to use this calculator
- Enter the width in pixels.
- Enter the height in pixels.
- The ratio is reduced to its simplest whole-number form.
Example
1920 × 1080 reduces to 16:9. The same ratio applies to 1280 × 720 and 3840 × 2160.
How it works
Calculate and simplify the aspect ratio of any width and height instantly. Inputs are calculated directly in your browser and the result updates whenever a value changes.
Frequently asked questions
What is an aspect ratio?
It is the proportional relationship between width and height.
Does the unit matter?
No. Width and height can use any matching unit; only their relationship matters.