Aspect Ratio Calculator – Resize Images and Videos

Aspect Ratio Calculator

Calculate scaled dimensions that maintain the original aspect ratio.

Result
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Common ratios: 16:9 (HD video, most monitors), 4:3 (old TV, iPad), 1:1 (Instagram square), 9:16 (TikTok, Stories), 3:2 (DSLR photos), 21:9 (ultrawide).

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