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Aspect Ratio Calculator

Free aspect ratio calculator online. Simplify width and height, plus scale to a new width.

Aspect ratio
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Scaled height
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How to calculate aspect ratio free

Calculate Aspect Ratio free with this aspect ratio calculator. It simplifies width and height with the greatest common divisor.

How to calculate aspect ratio: enter width and height. Optional new width returns the matching height at the same ratio.

This aspect ratio calculator free page is built for desktop and mobile. Aspect Ratio Calculator free means no account, no install, and no signup.

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aspect ratio calculator free FAQ

How do I calculate aspect ratio?

Enter width and height. The aspect ratio calculator simplifies them, for example 1920×1080 becomes 16:9.

How do I scale to a new width?

Enter the new width. Scaled height is new width × ratio height ÷ ratio width.

Is the aspect ratio calculator free?

Yes. You can calculate aspect ratio free with no signup and no software to install.

Can I calculate aspect ratio on mobile?

Yes. This aspect ratio calculator free tool works in a mobile browser. Open the page and get your result.