Aspect Ratio Calculator
Lock an aspect ratio (16:9, 4:3, 1:1, golden, custom) and solve for the missing width or height as you type.
100% in your browser. Files never uploaded.
1920 × 1080 px — 1.7778:1
How to use
- 1Pick a ratioCommon presets or custom W:H.
- 2Type one dimensionThe other recalculates as you go.