Aspect Ratio Calculator
Find reduced ratios, nearest common formats, and proportional resize values.
Proportional Resize
Enter new width to get proportional height.
- 100% free — no account needed
- Runs in your browser
- Nothing is uploaded
Frequently asked questions
Is Aspect Ratio Calculator really free?
Yes. Aspect Ratio Calculator is completely free on PureBrowser — every feature, with no account, no trial, and no credit card.
Does Aspect Ratio Calculator upload my data?
No. Aspect Ratio Calculator runs entirely inside your browser, so anything you type, paste, or open stays on your own device.
Do I need to sign up or install anything?
Neither. There is no account and nothing to download — open the page and Aspect Ratio Calculator is ready to use on desktop or mobile.
Does Aspect Ratio Calculator work offline?
Once the page has loaded, yes. All of the processing happens locally in your browser, so it keeps working without a connection.
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