Ratio Calculator

Simplify ratios and see their decimal value.

Enter both values.

About this calculator

Use this calculator to simplify a ratio and compare one value against another.

How to use

  1. Enter the two numbers you want to compare.
  2. Read the simplified ratio and decimal value.

Formula

Simplified ratio = first : second divided by their greatest common divisor

Example

20 : 30 → 2 : 3

FAQ

What if both values are zero?

A 0:0 ratio is undefined, so the calculator shows an error.

Does the calculator reduce negative values?

The ratio is normalized and simplified consistently, but 0:0 is still invalid.

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