Recipe scaler
Rescale a whole ingredient list for a different number of servings, with quantities rounded to fractions you can measure.
Scaling factor
×1.50
Every quantity below is multiplied by 1.50.
Ingredients
→ 3 cups
→ ¾ cups
→ 4 ½
Quantities are rounded to fractions you can actually measure. Scaling works cleanly for most things, but baking times, tin sizes and raising agents do not scale linearly — a doubled cake needs a bigger tin and longer in the oven, not twice the baking powder.
Why this number behaves the way it does
- A cup of flour is not a weightThe same cup of flour can weigh 120 g or 150 g depending on how it got into the cup. Why volume betrays you, and when it actually matters.
- Gas mark, fan, and the twenty-degree ruleFan ovens cook hotter than the dial says, gas marks are not linear, and recipes rarely tell you which they mean. How to read any oven instruction.