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Ratio & Proportion Calculators

Ratio to Percentage Calculator

Convert a ratio such as 3:2 or 1:4:5 into the percentage share of each part.

Enter values

Results update as you type.

Result

Part 1

60%

Part 2
40%
Step-by-stepShow
  1. Total parts = 5
  2. Part 1: 3 ÷ 5 × 100 = 60%
  3. Part 2: 2 ÷ 5 × 100 = 40%

About the Ratio to Percentage Calculator

Convert a ratio such as 3:2 or 1:4:5 into the percentage share of each part.

Also known as: ratio to percent, convert ratio to percentage, ratio percentage.

How to use this calculator

  1. Enter ratio.
  2. The result updates instantly as you type — press Calculate (or Enter) at any time.
  3. Open “Step-by-step” to see how the answer was worked out.
  4. Use Copy result or Share to save the answer or send a link with your inputs.

Formula

Part % = part ÷ sum of parts × 100

Worked example

Using the values pre-filled in the calculator above:

  • Ratio: 3:2

the calculator returns:

  • Part 1: 60%
  • Part 2: 40%

Working

  1. Total parts = 5
  2. Part 1: 3 ÷ 5 × 100 = 60%
  3. Part 2: 2 ÷ 5 × 100 = 40%