Nutrition
Linear Recipe Scaling Factor
A linear recipe scaling factor multiplies all ingredients by the same ratio for predictable portions—with salt and spices often scaled slightly less when doubling.
A linear recipe scaling factor multiplies every ingredient by the same ratio—1. 5× for six servings from four, 0.
5× for a half batch—so macros and shopping lists stay proportional. It works for soups, grains, and most proteins; leavening, salt, and strong spices often need a slight undershoot when doubling.
Write the factor on the recipe card before you shop.
Common questions
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When does linear scaling fail?
Baking with yeast, strong chili, and salt often need less than double when you double volume. Taste and adjust seasonings after the base ingredients are in.
Related terms
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