Aspect Ratio Calculator
Find the simplest ratio for your image or screen dimensions.
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Enter positive whole-number dimensions in the same unit. A 1920 × 1080 rectangle reduces to 16:9. Change the input or settings to update your result. Results update as you type. Up to 1,000,000 characters.
Your result
How to use Aspect ratio calculator
- Enter the values you want to calculate and choose the relevant units or settings.
- The result updates as you type. Adjust the available settings if needed.
- Review the result, then use Copy result or a download link when available.
What to expect
Find the simplest aspect ratio from a width and height. Enter positive whole-number dimensions in the same unit. A 1920 × 1080 rectangle reduces to 16:9.