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Aspect Ratio Calculator

Calculate dimensions, find aspect ratios, and resize proportionally. Presets for video, photo, social media, and cinema formats.

Dimensions

Lock:
Ratio:16:9
Decimal:1.7778
Megapixels:2.07 MP

Custom Ratio

:

Ratio Presets

Quick Resolutions

Scaled Sizes

Same aspect ratio at common widths

WidthHeightMegapixelsScale
320px180px0.0617%
640px360px0.2333%
768px432px0.3340%
1024px576px0.5953%
1280px720px0.9267%
1920px1080px2.07original
2560px1440px3.69133%
3840px2160px8.29200%

Preview

16:9
1920 ร— 1080

Code Snippets

CSS aspect-ratio
aspect-ratio: 16 / 9;
CSS padding trick
padding-bottom: 56.2500%;
Tailwind
aspect-[16/9]
FFmpeg scale
-vf scale=1920:1080

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