Utilities
Aspect ratio calculator
Convert dimensions to aspect ratio or ratio to dimensions. Supports 16:9, 4:3, and more.
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100% private. All processing happens locally in your browser — no files or data are ever sent to a server.
How to use Aspect ratio calculator
- 01 Choose a mode: enter width and height to get the ratio, or enter a ratio and one dimension to get the other
- 02 Results update live — simplified ratio, decimal form, and common name appear instantly
- 03 Use the common name badge (e.g. Widescreen/HD, 16:9) for quick reference
Frequently asked questions
Common questions about Aspect ratio calculator.
Is Aspect ratio calculator free to use?
Yes, Aspect ratio calculator is completely free. No account, subscription, or payment is ever required — just open the page and start using it.
Does Aspect ratio calculator upload my data to a server?
No. Aspect ratio calculator runs entirely in your web browser using client-side JavaScript. Your files, text, and data never leave your device, making it 100% private.
Can I use Aspect ratio calculator on my phone or tablet?
Yes. Aspect ratio calculator is fully responsive and works on all modern smartphones, tablets, and desktop browsers without installing any app.
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About Aspect ratio calculator
The Aspect Ratio Calculator works in two modes: enter width and height to get the simplified ratio (e.g. 1920×1080 → 16:9) with a common name like Widescreen or Standard; or enter a ratio and one dimension to calculate the missing dimension. Useful for video editors, designers, photographers, and anyone working with consistent proportions across screens, prints, and social media formats.
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