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Aspect Ratio Calculator

Calculate and convert aspect ratios for any width and height.

16:9
Simplified Ratio
1.7778
Decimal Ratio
→
720px
Common Ratios

About Aspect Ratio Calculator

Aspect Ratio Calculator computes the missing dimension of an image or element when you know one side and the desired aspect ratio. It also simplifies any width/height pair into its reduced ratio form. Essential for responsive design, video production, and print layout.

  • Calculate missing width or height
  • Simplifies to reduced ratio
  • Common ratio presets (16:9, 4:3)
  • Works for images and video

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