Runs entirely in your browser

Aspect Ratio Calculator

Calculate image dimensions from editable ratio presets.

The interactive controls load with JavaScript. Instructions and help are available below.

How to use

  1. 1Choose or enter a ratio.
  2. 2Set the desired output width.
  3. 3Calculate the matching height and use it in image preparation.

Frequently asked questions

Is this tool free to use?

Yes. No account or payment is required.

Where is my input processed?

Processing takes place in your browser. Some tools load a local processing engine before they can run. Your input files are not uploaded to our servers.

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