Ratio Calculator

Simplify ratios, solve equivalent ratios, and split amounts in proportion from the same tool.

Preparing Ratio Calculator

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Input

Choose the ratio task you need, then enter the values for simplification, matching ratios, or proportional splitting. You will see the result first and the step-by-step solution below.

Input summary

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Step by Step Calculation

a:b

Step by step calculation shows here

Calculate first and the full working will appear below automatically.

How to use Ratio Calculator

Select the ratio mode first, and the calculator will handle the simplification or proportional share calculation for you.

What this calculator is for

This calculator is for recipe scaling, proportional sharing, map scales, mixture problems, and any situation where relative size matters more than raw totals.

Tips

Simplify ratios only after all parts use the same unit.
In equivalent-ratio questions, keep the positions aligned so the matching parts stay paired.
When splitting an amount, add the ratio parts first before reading each share.