Aspect Ratio Calculator
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About Aspect Ratios
An aspect ratio is the proportional relationship between the width and height of a rectangle. It's commonly written as width:height (e.g., 16:9) or as a decimal (e.g., 1.78:1).
Common Aspect Ratios:
- 16:9 (1.78:1) - Standard widescreen format for videos and modern displays
- 4:3 (1.33:1) - Traditional TV and computer monitor format
- 1:1 - Square format, popular on social media
- 21:9 (2.35:1) - Ultra-widescreen/Cinematic format
This calculator helps you either find the aspect ratio from given dimensions or calculate missing dimensions when you know the desired aspect ratio.