Compute a video's aspect ratio and scale width/height with the ratio locked. Presets like 16:9 and 9:16.
Aspect Ratio Calculator is a free online Video tool. It works right in your browser with no signup, and your input is never uploaded to a server.
Completely free
Every feature is free — no sign-up required.
100% in your browser
Files and input never leave your device.
Instant
Use it right away — nothing to install.
Yes. Aspect Ratio Calculator and every tool on choalabs are free with no account needed.
No. All processing happens in your browser, so your files and input are never sent anywhere.
Yes, it works in any modern browser on phones, tablets, and desktops.
No. You only need a web browser — there's nothing to install.