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.
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.
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.