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Recipe Scaling Calculator

Enter the original and desired servings to get the factor to multiply every ingredient by.

Scaling a recipe is just multiplying every ingredient by the same factor — the desired servings divided by the original. This tool gives you that multiplier so you can cook for any number of people without guesswork.

In the kitchen
Cook to scale.
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Frequently asked questions

How do I double or halve a recipe?

Doubling is ×2, halving is ×0.5. For anything else, divide your desired servings by the original.

Do cooking times scale too?

Not linearly — volume changes cooking time less than quantity. Watch the food, not just the clock.