FreeDev Tools

Ratio Calculator

Simplify ratios, convert to 1:n form, and see each side as a percentage split.

Runs locally in your browser. Your input is not uploaded.

How to Use

  1. 1

    Enter ratios

    One per line as a:b — e.g. 1920:1080 or 2.5:1.5.

  2. 2

    Results compute instantly

    Each ratio is simplified and shown as 1:n, n:1, and a percent split.

  3. 3

    Copy the output

    Use copy or download to save the simplified ratios.

Frequently Asked Questions

Enter it as a:b — e.g. 1920:1080 — and the tool divides both sides by their greatest common divisor to give 16:9, plus the 1:n form and percentage split.

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