Tool
Recipe Scaler
Scale recipe ingredients up or down by servings.
Kitchen / Recipe Tools
What this tool does
Paste ingredient lines with leading quantities and scale to a new serving count.
How to use
- Paste ingredients with quantities at the start of each line.
- Enter original and target servings.
- Copy scaled ingredient list.
Examples
Double a 4-serving recipe
Input: 4 servings → 8 servings
Output: All quantities × 2
Scale factor = target ÷ original = 2.
Assumptions
- Linear scaling works for most ingredients.
- Leavening and seasoning may need taste adjustment.
Common use cases
- Cook for larger groups
- Halve recipes for two people
- Adjust catering batch sizes
FAQ
What format should ingredients use?
Start each line with a number, such as '2 cups flour'.
Does it scale fractions?
Whole and decimal numbers scale; complex fractions may need manual review.
Can I scale baking recipes?
Yes, but leavening agents sometimes need slight adjustment beyond linear scaling.
How do I scale oven temperature?
Use the oven temperature converter separately—heat settings do not scale linearly with servings.
Source notes
- USDA and common cookbook scaling practices use proportional ingredient multiplication.
Related tools
Last reviewed: 2026-05-23