Recipe Scaler
Scale a recipe's ingredient quantities up or down by servings, with tidy fractions in the result.
How to use it
- Paste your ingredients One ingredient line per line, with quantities.
- Set the servings The original count and the count you want.
- Copy the result Quantities are rescaled with neat fractions.
Examples
| 4 → 8 servings | doubles amounts |
|---|---|
| 3 eggs ×0.5 | 1 1/2 eggs |
About this tool
Doubling a recipe or cutting it down for fewer people means recalculating every ingredient — easy to get wrong with fractions involved. Paste your ingredient list, set the original and desired servings, and this scaler rewrites each quantity for you.
It understands whole numbers, decimals, fractions and mixed numbers, and presents the results as clean fractions where it can. Remember that only quantities scale neatly — cooking times and temperatures need your own judgement. It all runs in your browser.
Frequently asked questions
Does it understand fractions?
Yes. It reads whole numbers, decimals, fractions like 1/2 and mixed numbers like 1 1/2, and rewrites the scaled amounts as tidy fractions where possible.
Will it scale cooking times too?
No. Only ingredient quantities scale linearly; times and temperatures often don't, so adjust those by judgement.
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Updated June 14, 2026