Baking
Recipe Scale Calculator
Halve, double or resize a recipe. Paste the ingredient list and every amount is scaled, with spoons and cups tidied into easy measures.
Scale factor
× 1½
From 4 to 6 servings.
- 3 cupsall-purpose flourwas 2 cups all-purpose flour
- 1½ cupsgranulated sugarwas 1 cup granulated sugar
- ¾ cupbutter, softenedwas ½ cup butter, softened
- 3eggswas 2 eggs
- 2¼ tspbaking powderwas 1½ tsp baking powder
- 1½ tspvanilla extractwas 1 tsp vanilla extract
- ⅜ tspsaltwas ¼ tsp salt
- 1⅛ cupsmilkwas ¾ cup milk
How this is calculated
Scale factor = servings you need ÷ servings the recipe makes. Each amount is multiplied by it, and ranges like “2–3 cloves” scale at both ends.
Teaspoons, tablespoons and cups are converted to the easiest measure (3 tsp = 1 tbsp, 16 tbsp = 1 cup), so 2 tbsp doubled becomes ¼ cup. Lines without a number at the start, like “salt to taste”, stay as written.
Baking times, pan sizes and leavening don’t always scale in a straight line. For big changes, check doneness early.
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