Recipe Scaling Calculator
Resize a recipe from one serving count to another.
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Recipe Scaling Calculator by TheCalcTools
How the Recipe Scaling Calculator works
Enter the servings in the original recipe and the servings you want.
Enter up to four ingredient amounts in any units.
Every amount is multiplied by the same scale factor.
The formula
Worked example
Using the default values shown in the calculator:
| Original servings | 4 |
|---|---|
| Desired servings | 10 |
| Ingredient 1 amount | 250 |
| Ingredient 2 amount | 2 |
| Ingredient 3 amount | 0.5 |
| Ingredient 4 amount | 1.5 |
- Factor = 10 ÷ 4 = 2.50.
- 250 becomes 625, 2 becomes 5, 0.5 becomes 1.25 and 1.5 becomes 3.75.
Result:
| Scale factor | 2.500 |
|---|---|
| Ingredient 1 | 625.00 |
| Ingredient 2 | 5.00 |
| Ingredient 3 | 1.25 |
| Ingredient 4 | 3.75 |
Frequently asked questions
Do all ingredients scale linearly?
Mostly, but not salt, spices, leavening and cooking time. Scale those more cautiously and taste as you go.
What about pan size?
When you change the batch, change the pan so depth stays similar. Otherwise baking times and results change.
Sources and further reading
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This calculator gives general estimates for information and education. It is not medical advice and does not diagnose anything. Talk to a qualified health professional about your own situation. See our disclaimer.