Aspect ratio calculator
16:9? 4:5? Scale sizes without math
Work with aspect ratios without a calculator: reduce any width × height to its simplest ratio, and scale a size to a new width or height while keeping the proportions locked.
How it works
- Open the tool and add your file (or paste your text).
- Adjust the options — everything previews instantly.
- Download the result. Done.
Private by design
This tool runs 100% in your browser. Your files are never uploaded to a server, never stored, and never seen by anyone — close the tab and nothing remains.
Free, no limits
No account, no watermarks, no daily caps. If you also need full design tools, the Ijodly editor is one click away.
Frequently asked questions
Is Aspect ratio calculator free to use?
Yes — Aspect ratio calculator is completely free. There is no account to create, no watermark on your results and no daily limits.
Are my files uploaded when I use Aspect ratio calculator?
No. Aspect ratio calculator runs entirely in your browser. Your files never leave your device and nothing is stored on a server — close the tab and nothing remains.
Do I need to install anything or sign up?
Neither. Open the page, use Aspect ratio calculator straight away and download your result. No install, no signup.