KITCHEN TOOLS
Scale an ingredient list from the original serving count to your target. Enter decimals or simple fractions.
Free · No sign-up · Processed on your deviceRECIPE SCALE
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| Ingredient | Original | Scaled | Unit |
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Quantities are multiplied by the scaling factor; units stay unchanged. Results show up to 10 significant figures.
Preparing the tool…
KITCHEN MATH
The multiplier is target servings ÷ original servings. For 3 ÷ 2 = 1.5, 200 g flour becomes 300 g, 1/2 cup milk becomes 0.75 cup and one egg becomes 1.5 eggs. The multiplier is shared, but fractional ingredients still need a practical measuring decision.
Cups measure volume and grams measure mass. Converting between them requires the ingredient density, packing method and the cup standard used by the original recipe. One cup of flour is not assumed to weigh the same as one cup of milk. Keep the original measuring convention.
Doubling ingredients does not make cooking time exactly double. Pan size, depth and the amount cooked at once can change. This tool does not calculate cooking time, doneness or storage life. Follow the original cooking instructions and check the actual result.
The tool shows the proportional value without rounding it up to a whole ingredient. Choose a measuring method appropriate to the recipe, or change the target batch size when an ingredient is difficult to divide. Ingredient-specific cooking decisions remain separate from arithmetic.
Every entered quantity receives the same multiplier. That does not guarantee the desired flavour scales in exactly the same way. Use the result as a preparation starting point and check any adjustment instructions in the original recipe.
The amount column accepts one number. Non-numeric amounts and ranges such as 1–2 cannot be scaled here; keep them as separate recipe notes. Unit labels such as g, cup or tbsp are preserved without conversion.
You can use item counts or batch counts if both numbers use the same basis. To increase 12 cookies to 18, enter 12 and 18. Do not mix different bases, such as an original item count and a target serving count.
Ingredient names and quantities are processed in the current browser. There is no upload or save feature, and refreshing restores the example. Copy buttons write results to your device clipboard only when pressed.