Recipe Scaling Calculator
Enter an ingredient amount, the original number of servings, and your desired number of servings to scale the recipe.
How recipe scaling works
Scaling a recipe multiplies each ingredient amount by the ratio of new servings to original servings. For example, doubling a recipe (going from 4 to 8 servings) multiplies every ingredient by 2.
This works well for most ingredients, but be aware that scaling isn't always perfectly linear for things like spices, leavening agents (baking soda/powder), and cooking times — these sometimes need smaller adjustments than a strict proportional scale-up would suggest.
Frequently asked questions
Does this work for scaling down as well as up?
Yes — enter a new serving count smaller than the original to scale a recipe down, for example reducing a recipe from 8 servings to 2.
Should I scale spices and seasoning the same way as other ingredients?
Not always — many cooks scale strong spices, salt, and leavening agents a bit less than proportionally when doubling or tripling a recipe, since their effect doesn't always increase linearly with quantity. Taste and adjust as needed.
Does cooking time also scale with the recipe?
Not proportionally. A larger batch (especially in one pan, like a cake or casserole) usually needs a longer cooking time, but not double the time for double the ingredients — this calculator scales quantities, not cooking times.