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Ratio Calculator

Divides both integer terms by their greatest common divisor.

Your inputs stay in your browser. No account required.
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How Ratio Calculator works

Divides both integer terms by their greatest common divisor.

Try an example

1920:1080 → 16:9.

Good to know

Whole numbers only; signs are preserved.

Your privacy

Processing happens on this device for this tool. We do not upload your input, put it in share links or save it to your favourites. Closing this tab discards the working input; downloaded results remain wherever you save them.

When this tool is useful

Use Ratio Calculator when you need a quick, local result and want the rule or limitation visible alongside it.

How to use it

  1. Enter the input using the labels shown.
  2. Run the operation and review the result.
  3. Download or copy the result only after checking it.

Checks before you rely on the result

  • Whole numbers only; signs are preserved.
  • Keep the original input when the operation creates a new copy.
  • Use the related tools below when the next step needs a different format.

This page is maintained with the tool implementation and its deterministic tests. If the result looks wrong, report the issue with a non-sensitive example.

Read the Ratio Calculator instructions

A useful next step

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