✦Cooking
How do I scale a recipe to a different number of servings?
Scale an ingredient amount up or down using the same proportion as the serving count.
Formula: 300 × 7 ÷ 4 = 525 g. The scale factor is 1.75. Every ingredient can be multiplied by that same factor.
✦Calculate it
Enter your values
300 × 7 ÷ 4 = 525 gThe scale factor is 1.75. Every ingredient can be multiplied by that same factor.
02Understand it
Why this calculation works
new amount = original amount × needed servings ÷ original servings. The calculation above updates with your own values, so the answer is never a disconnected black box.
Worked example
300 g for 4 servings scales to 525 g for 7 servings.
Assumptions and edge cases
- Ingredient quantities scale proportionally.
- Cooking time and container size may not scale in the same way.
03Practise it
Learn the mathematics
This tool connects to the authoritative Goofer Math skill graph. Study the concept, then practise with the same validated exercise architecture used by the full game.
04Master it
Continue in Math From Counting to Calculus
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Related real-life calculations
Questions people ask
Can I halve a recipe?
Yes. Set the needed servings to half the original servings; the scale factor becomes 0.5.