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Calculator Tools
Ratio & Proportion Calculators

Ratio Simplifier

Simplify any ratio (including decimals and three or more parts) to its lowest whole-number terms.

Enter values

Results update as you type.

Result

Simplified ratio

3 : 4 : 5

As 1 : x
1 : 1.3333 : 1.6667

About the Ratio Simplifier

Simplify any ratio (including decimals and three or more parts) to its lowest whole-number terms.

Also known as: simplify ratio, reduce ratio, ratio in simplest form, lowest terms ratio.

How to use this calculator

  1. Enter ratio.
  2. The result updates instantly as you type — press Calculate (or Enter) at any time.
  3. Review the breakdown shown under the main result.
  4. Use Copy result or Share to save the answer or send a link with your inputs.

Formula

Divide every term by their greatest common divisor

Worked example

Using the values pre-filled in the calculator above:

  • Ratio: 18:24:30

the calculator returns:

  • Simplified ratio: 3 : 4 : 5
  • As 1 : x: 1 : 1.3333 : 1.6667