Recipe Scaling Calculator
Scale recipe ingredients up or down for any number of servings instantly.
Results
Recipe scaling is the most common cooking calculation. Whether you are halving a recipe for two, doubling it for a dinner party or scaling up for catering, the math is simple - multiply each ingredient by the ratio of desired servings to original servings. Our calculator handles fractions and odd numbers so you can focus on cooking instead of arithmetic.
Frequently asked questions
Divide 6 by 4 to get a scale factor of 1.5, then multiply every ingredient amount by 1.5. For example, 2 cups of flour becomes 3 cups.
Yes, divide each ingredient by 2. Set original servings to 4 and desired servings to 2 for a scale factor of 0.5.
Multiply every ingredient by 2. Set original servings to the recipe amount and desired servings to double that number.
Scaling works for most baking recipes but very large multiples (4x or more) can affect leavening. For large batches, it is safer to make multiple separate batches.
Divide 50 by the original serving count to get your scale factor. For a recipe that serves 8, the factor is 6.25x. Multiply each ingredient amount by 6.25.
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