📖 Read the full Aspect Ratio Calculator guide — how it works, examples & FAQ →
How to use this tool
- Type dimensions as width x height.
- Read the simplified ratio and decimal.
- Match it to your platform's target (16:9, 9:16, 1:1).
Example
1920x1080 → 16:9
Why it's private
This tool runs entirely in your browser using JavaScript. Whatever you paste is processed on your own device — it is never uploaded to a server, logged, or stored. Built by Calabi, which also strips AI metadata and C2PA signals from images and video.