Math & Science
Popular
Aspect Ratio Calculator
Find aspect ratio from dimensions and scale images while maintaining ratio.
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Aspect Ratio
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Decimal
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Common Name
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Diagonal (px)
Keep the aspect ratio and find missing dimension.
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Scaled Width
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Scaled Height
| Ratio | Name | Common Uses |
|---|---|---|
| 16:9 | Widescreen | HD/4K monitors, YouTube, TV |
| 4:3 | Standard | Old TV, iPad, presentations |
| 1:1 | Square | Instagram posts, profile photos |
| 21:9 | Ultrawide | Cinema, ultrawide monitors |
| 9:16 | Vertical | Mobile video, TikTok, Stories |
| 3:2 | Classic Photo | 35mm film, DSLR cameras |
| 2:1 | Univisium | Film, some smartphones |
| 4:5 | Portrait Photo | Instagram portrait |
| 2.39:1 | Anamorphic | Cinematic film scope |