Online Tools and Calculators > Math > Proportion Calculator

Proportion Calculator

Enter 3 numbers below and leave one field blank to solve for that value.


About This Tool

The online Proportion Calculator is used to solve proportion problems and find the missing value in a proportion.

A proportion is two ratios that have been set equal to each other, for example, 1/4 equals 2/8. Solving a proportion means that you are missing one part of one of the fractions, and you need to find that missing value.

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