Images and video
Aspect ratio calculator
Calculate a missing width or height, detect the ratio of an image or video, and copy ready-to-use CSS. Everything runs locally in your browser.
Calculate dimensions
Upload image or video
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Common ratio
Results
16:9simplified ratio
1.778decimal ratio
1920 × 1080dimensions
Noneletterbox bars
aspect-ratio: 16 / 9;
Resize mode
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Modified image