Recipe Scaler – Scale Any Recipe Up or Down
Scale any recipe to any serving size. Multiply or divide all ingredients proportionally.
About This Calculator
Scale any recipe to any serving size. Multiply or divide all ingredients proportionally. Use the calculator above for instant results.
Worked Examples
- Scale factor: 2.5 | 2 × 2.5 = 5
- Every ingredient × 2.5
Answer: Scale factor: 2.5x
- Scale factor: 0.25 | 2 cups → 0.5 cups (1/2 cup)
Answer: Scale factor: 0.25x
- Factor: 1.333 | Each 3/4 cup → 1 cup | Each 1 cup → 1.33 cups
Answer: Factor: 1.333x
Who Uses This Calculator?
Scale any recipe to any serving size.
Test recipes at different scales.
Scale recipes for large groups.
Double or triple recipes for the week.
Common Mistakes to Avoid
❌ Assuming baking scales linearly
Baking chemistry can change at extreme scales. A recipe scaled 10x may need adjusted leavening ratios. Test before large events.
❌ Pan size doesn't scale proportionally
Doubling a recipe doesn't mean doubling pan size. Volume scales but surface area doesn't — cooking time changes too.
Frequently Asked Questions
Leavening scaling?
Baking soda/powder don't always scale linearly. For 3x a recipe, use 2.5x leavening. Too much can make baked goods taste metallic.
Seasoning scaling?
Scale spices by 75% of the ratio — they intensify more than proteins and carbs. Taste and adjust.
Time and temperature?
Cooking time and temperature don't scale. Same temp; check doneness earlier or later depending on pan fullness.