Aspect Ratio Calculator
Enter a width and height to get the simplified aspect ratio (like 16:9 or 4:3) — handy for video, images and screen layouts. Calculated in your browser.
- 100% free
- Private & safe
- Runs in your browser
Why use Aspect Ratio Calculator?
Aspect Ratio Calculator converts instantly and accurately in your browser, showing every unit or format side by side so you can copy the one you need.
- Runs instantly in your browser — nothing to install, nothing uploaded.
- Completely free, with no account, no watermarks and no usage limits.
- Output: simplified W:H ratio
- Enter width and height.
- Works on any device — desktop, tablet and phone — and is fully keyboard accessible.
How to use Aspect Ratio Calculator
- Enter width and height.
- See the simplified ratio.
- Use it to plan layouts or exports.
Examples
- 1920×1080 simplifies to 16:9.
- Checking a photo's ratio.
Supported formats & limits
- Output: simplified W:H ratio
Limitations
- Rounds inputs to whole pixels before simplifying.
Frequently asked questions
What's 1920×1080?
16:9.
Does it scale dimensions?
This version shows the ratio; use the image resizer to scale.
Uploaded?
No — local only.
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