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Recipe Scaling Calculator — Fractions, Servings & Ingredient List
Editable live calculator
Change any input — the result updates immediately
No hidden assumptions. Inputs, units and the working stay visible so you can check the calculation.
Calculated result
×2.5 recipe scale
4 of 4 lines had a recognized leading quantity
Original yield: 4 → target yield: 10
Scaled ingredient list
| Original amount | Scaled amount | Ingredient |
|---|---|---|
| 2 | 5 | cups flour |
| 1 1/2 | 3 3/4 | cups milk |
| 3 | 7 1/2 | eggs |
| 1/2 | 1 1/4 | tsp salt |
Show the working
- 1. Scale factor = 10 ÷ 4 = 2.5.
- 2. Multiply each recognized leading quantity by 2.5.
- 3. Display values near common eighth fractions as practical kitchen fractions; retain other values as decimals.
Ingredient quantities scale arithmetically. Cooking time, temperature, pan geometry, seasoning, leavening and food-safety guidance do not necessarily scale by the same factor.
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