Aspect Ratio Calculator
Solve for any missing dimension at a given aspect ratio.
Result
1920 × 1080
Reduces to 16:9 · 1.778:1
About
Lock an aspect ratio (16:9, 4:3, 1:1, etc.) and enter a width or height. The other dimension fills in automatically. Useful for video editors, designers, and anyone resizing without distortion.
How to use
- Pick an aspect ratio preset, or type a custom one.
- Enter either the width or the height. The other fills in.
FAQ
How do I figure out an unknown aspect ratio?+
Enter both dimensions. The tool reduces them to lowest terms. 1920×1080 becomes 16:9. 3840×1600 becomes 12:5.