Cooking & Kitchen

Recipe Scaling Calculator

Enter the servings your recipe was written for, how many you need now, and one ingredient amount — the scaled amount updates instantly.

This result shows the factor to multiply each ingredient by and the new amount for the serving count you entered.

Formula

New amount = original amount x (new servings / original servings).

How it works

Scaling a recipe is a straight multiplication: every ingredient is multiplied by the same factor, so the balance of flavours stays the same.

Seasoning and leavening are the two exceptions to watch — taste as you go, and check cakes and breads a little early when scaling up.

Worked example

For example, scaling from 4 servings to 6 servings gives a factor of 6 / 4 = 1.50, so an original amount of 200 becomes 200 x 1.50 = 300.0 in the same unit.

FAQs

Does scaling change the cooking time?
Often, yes. A larger quantity usually needs a little longer, but not in direct proportion — check for doneness early rather than guessing.

Should I scale salt and spices exactly too?
Start with the scaled amount, then taste and adjust. Strong flavours can overpower quickly in a big batch.

Can I scale a recipe down to one serving?
Yes. Divide every ingredient by the original serving count and round sensibly — a kitchen scale helps with small amounts.

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