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Calculate Aspect Ratios

Find the aspect ratio of any resolution and calculate matching dimensions.

Runs:
In your browser (no upload)

What the Aspect Ratio Calculator does

Find the aspect ratio of any width and height, and calculate the missing dimension when resizing so images and videos keep their proportions.

Options

  • Width and Height.
  • New width or new height to calculate the other side.

How to use the Aspect Ratio Calculator

  1. 1

    Enter your input in the fields above.

  2. 2

    Adjust the options to suit your needs — the defaults work well for most files.

  3. 3

    Click “Run Aspect Ratio Calculator” to start processing.

  4. 4

    Review the results shown below, and copy any values you need.

Frequently asked questions