When to use this calculator
Scale an ingredient amount to a new number of servings. Ingredient quantity scales linearly; cooking time and seasoning may need adjustment.
Explore the recipes & portions calculators for other questions in this topic. For a related calculation, use the Bakers Hydration Calculator: Calculate water mass as a percentage of flour mass in dough.
PUTTING IT INTO PRACTICE
Recipe Scaling: a worked example
The values below are an illustrative example, not a recommendation. Replace them with measurements or assumptions that match your question.
| Input | Example value |
|---|---|
| Original ingredient amount | 200 |
| Original servings (integer) | 4 |
| Target servings (integer) | 6 |
| Result | 300 original units |
- Check the input labels and enter the example values above.
- Apply the relationship: New amount = original amount × target servings ÷ original servings.
- The result is 300 original units, rounded for display.
How to interpret your result
Ingredient quantity scales linearly; cooking time and seasoning may need adjustment.
Raw, cooked and trimmed weights are different measurement stages. An edible-yield percentage describes the remaining share after preparation. Scaling ingredient amounts does not automatically scale cooking time.
Frequently asked questions
Should portion weights use raw or cooked food?
Use whichever basis your recipe or serving plan requires, and state it consistently. Do not compare raw weights directly with cooked weights.
How do I use the recipe scaling calculator?
Enter original ingredient amount, original servings (integer), target servings (integer). The result updates automatically. Use the units shown beside each input; the example values illustrate the method.
Which formula does this calculator use?
New amount = original amount × target servings ÷ original servings.
What should I check before using the result?
Ingredient quantity scales linearly; cooking time and seasoning may need adjustment.
How are results rounded?
Scalar numbers display up to six decimal places, with scientific notation for very large or small values. Text, fraction, date and schedule outputs use the format described on the tool. Intermediate calculations use JavaScript floating-point arithmetic. Keep sensible precision for your measurements.
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