Aspect Ratio Tester
Reduce a width×height pair to a simplified ratio (e.g. 1920×1080 → 16:9) and preview it.
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How it works
- 1
Enter width and height
In any unit — pixels, inches, anything consistent.
- 2
Ratio simplified instantly
e.g. 1920×1080 reduces to 16:9.
- 3
Preview the shape
See the ratio as a rectangle to sanity-check it visually.
FAQ
- How is the ratio simplified?
- By dividing both numbers by their greatest common divisor — the same math behind reducing a fraction.
- Can I use this for video or design work, not just images?
- Yes — it works for any width×height pair, useful for checking video frame ratios, print sizes or screen resolutions too.
- Does this tool upload my numbers anywhere?
- No — the calculation runs entirely in your browser.