Apps / Everyday Converters & Calculators / Ratio & Proportion Calculator

⚖️ Ratio & Proportion Calculator

Three independent tools: simplify a ratio, solve a proportion for a missing value, and split a total according to a ratio.

1. Simplify a ratio

Simplified
Greatest common divisor

2. Solve a proportion — A : B = C : D

Leave exactly one of the four boxes blank; it will be solved for.

Result

3. Scale a ratio to a total