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Cooking ratio calculator

Keep a ratio like 1 part rice to 2 parts water, or 1:16 coffee, for any amount.

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Amount of B needed 3

How it works

B needed = your A × B ÷ A

A ratio says how much of one thing goes with another. Divide the amount you have by the first part of the ratio to see how many “parts” you have, then multiply by the second part. With rice at 1:2, 1.5 cups of rice needs 1.5 × 2 = 3 cups of water. Use the same unit for both sides.

  1. How many parts you have 1.5 ÷ 1 = 1.5
  2. Times the second part 1.5 × 2 = 3

Printed from rocketcalc.io/kitchen/cooking-ratio