Is Aspect Ratio Calculator free?

Yes, Aspect Ratio Calculator is completely free to use with no signup required.

Does Aspect Ratio Calculator send my data to a server?

No. Aspect Ratio Calculator runs entirely in your browser using client-side JavaScript. Your data never leaves your device.

Simplify pixel dimensions into a ratio, or solve width/height from a chosen preset like 16:9 or 4:3. Runs in your browser.

DevTab

Never leaves your browser

Simplify width/height into a ratio, or solve one dimension from a chosen ratio.

Width (px)

Height (px)

Simplified Ratio16:9

Common Presets (locks width, solves the other)

16:9 preview

Valid Dimensions