Aspect Ratio Calculator
Calculate aspect ratios, resize dimensions proportionally and find common screen resolutions. Free aspect ratio calculator for images and video.
Calculate Ratio
Aspect Ratio: 16:9
1.778
Resize Proportionally
New Size: —
16:9
Common Aspect Ratios
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Free Aspect Ratio Calculator
Calculate aspect ratios for images, videos and screens. Resize dimensions proportionally while maintaining the correct ratio. Includes presets for common formats.
Common Aspect Ratios
- 16:9 - Standard for HD video, YouTube, TV
- 9:16 - Vertical video: TikTok, Instagram Reels, YouTube Shorts
- 1:1 - Square: Instagram posts, profile pictures
- 4:3 - Classic TV, iPad displays