Recipe Scaler Calculator
Scale an ingredient amount up or down when you change the number of servings in a recipe.
Quick answer: enter your details below and click Calculate — your result appears instantly, right here in your browser. Nothing you enter is uploaded or stored.
R
Calculators
Enter your details below.
How to use
- Enter the original number of servings in the recipe.
- Enter the new number of servings you want.
- Enter one ingredient amount and press Calculate to see its scaled amount.
About this tool
Divide the new number of servings by the original number to get a scaling factor, then multiply your ingredient amount by that factor. A factor above 1 scales the recipe up, and a factor below 1 scales it down, keeping every ingredient in the same proportion.
Frequently asked questions
Does this work for scaling down as well as up?
Yes. Fewer new servings than original servings gives a factor below 1, which shrinks the amount proportionally.
What about cooking times and temperatures?
Those do not scale the same way as ingredient amounts, so adjust them by judgement and check the food as it cooks.