ZovaTool

Ratio Calculator

Result

Ratio
2 : 3
Decimal A/B
0.666667
% split
40% : 60%
GCD
6

How to use the Ratio Calculator

  1. Simplify mode: reduce A:B to lowest terms.
  2. Equivalent mode: solve A:B = C:D for the missing value.
  3. Scale mode: multiply both parts by a factor.
  4. Result also shows decimal value, percentage split and GCD.
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Ratios for recipes, mixtures and maps

A ratio compares two quantities of the same kind. 3:2 means '3 parts of one thing for every 2 parts of the other'. Multiplying or dividing both sides by the same number gives an equivalent ratio.

Solving an equivalent ratio (A:B = C:D) is just cross-multiplication: A·D = B·C. Useful for scaling a recipe, reading a map, or mixing paint.