Recipe Serving Size Calculator

Double a recipe for a dinner party or halve it for two — instantly.

TL;DR: Enter original servings, desired servings, and one ingredient amount to get the scaled quantity.

Last updated: June 18, 2026

Calculator

Original servings

New servings

Ingredient amount (original recipe)

Unit

Scaled amount = original amount × (new servings ÷ original servings). Apply the same ratio to every ingredient in your recipe.

Often yes — larger batches may need longer cooking. Check doneness rather than relying on original times.

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