Direct calculator
Aspect ratio calculator
Divide width by height to find an aspect ratio. This calculator simplifies the result to a common ratio when it is close, or shows the exact custom ratio.
Images are processed locally in your browser.
Quick reference
| Formula | width ÷ height |
|---|---|
| Reverse | height ÷ width |
| Lock ratio | Updates the companion dimension |
| Copy | Copies ratio and dimensions |
Use the calculator for images, video frames, screens, embeds, thumbnails, social posts, and any rectangular canvas.