Online Tools and Calculators > Math > Proportion Calculator

Proportion Calculator

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


About Proportion Calculator

The 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.

Please enter 3 numbers and leave one field blank, then click Calculate button.


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