Ratio Calculator

Calculate equivalent ratios, find missing values, and simplify ratios instantly. Enter the known values to compare two quantities and find the proportional result.

Ratio Details

Enter three known values to find the missing value

A:B

First Ratio

First Value

Second Value

Equivalent Ratio

Known Value

Missing Value

Simplified Ratio

Reduce the first ratio to its simplest form.

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Ratio Result

Equivalent proportion

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Missing Value

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Enter three values to calculate the missing value.

Original Ratio —

Equivalent Ratio —

Simplified Ratio —

Scale Factor —