Aspect Ratio Calculator

Calculate the aspect ratio of an image or screen and find missing dimensions while maintaining proportions. Perfect for video editing and web design.

Step 1: Find the Ratio

Base Aspect Ratio
16:9

Step 2: Compute New Sizes

Locked to 16:9

Resulting Size

0×0

Popular Display Standards

Full HD

  • Width: 1920px
  • Height: 1080px
  • Ratio: 16:9

4K Ultra HD

  • Width: 3840px
  • Height: 2160px
  • Ratio: 16:9

Instagram Post

  • Width: 1080px
  • Height: 1080px
  • Ratio: 1:1

Cinemascope

  • Width: 2560px
  • Height: 1080px
  • Ratio: 21:9