Kitchen Math

Scale a recipe

One ingredient per line. Lines without an amount at the start are not scaled.

Servings
Units

Scaled recipe

Recipe formats

Amounts
2, 1.5, 1/2, 1 1/2, 1-1/2, ½, 1½, ranges like 2-3 or 2 to 3, and a or an before a unit
Units
cup or c; tablespoon, tbsp or T; teaspoon, tsp or t; fl oz, oz, lb, g, kg, mL, L, pint, quart, gallon; counts such as pinch, clove, can and stick
Combined amounts
1 cup plus 2 tbsp, or 1 lb 4 oz, scale as one amount
Package sizes
In 2 (14.5 oz) cans, 1 15-ounce can or 2 cans (14.5 oz each), only the number of cans changes
Second amounts
1 cup (240 mL), 1 cup / 240 mL, and amounts in parentheses later in the line, such as (about 1 tbsp), scale with the first
Servings
A line starting with Serves, Makes or Yield fills in the servings and scales with the recipe
Temperatures
With US or Metric selected, temperatures and gas marks in the text are converted. A line that already gives the temperature in both scales stays as written.

Cups and spoons are US customary measures: 1 cup is 8 fluid ounces (236.6 mL), 1 tablespoon is 1/2 fluid ounce, and 1 teaspoon is 1/3 tablespoon.