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Ratio to Percentage Calculator

Convert a ratio like 3:2 into the percentage share of each part.

Inputs

Saved Scenarios

— select 2+ to compare

Part A

60.0%

Part B

40.0%

Spark says

How it's calculated

Formula

%A=AA+B×100\%A = \dfrac{A}{A + B} \times 100
A, B
— The two parts of the ratio

What is the Ratio to Percentage Calculator?

A ratio compares two quantities directly (like 3:2); converting it to percentages shows what share of the combined total each part represents.

How to use it

  1. 1 Enter the first part of the ratio.
  2. 2 Enter the second part of the ratio.

Worked examples

Ratio 3:2

Part A is 60%, Part B is 40%.

Try it

Frequently asked questions

How do I convert a 3-part ratio to percentages?

Divide each part by the sum of all parts, then multiply by 100. This calculator handles two-part ratios; the same method extends to any number of parts.