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Recipe scaler

Recipe Scaler: Double, Halve or Resize Any Recipe

Paste your ingredients, say how many people you are cooking for, and get new amounts in fractions you can actually measure. It reads mixed numbers, fraction characters and ranges.

Scale by

Scaled recipe (x 1.5)

  • 2 ¼ cups flour
  • 1 ⅛ cups sugar
  • 3-4 ½ cloves garlic
  • 1 ½ tsp salt
  • 3 eggs
  • Butter for the pan

One line has no amount at the start and stays as written (shown in gray).

Handy conversions

Spoon and cup math

  • 3 teaspoons equals 1 tablespoon
  • 4 tablespoons equals ¼ cup
  • 16 tablespoons equals 1 cup
  • 8 fluid ounces equals 1 cup

Scaling up past double

Bulk ingredients scale cleanly. Strong flavors do not. When you triple or more, start salt, chili, baking soda and yeast at a little under the scaled amount, then taste and adjust. A bigger batch also needs a bigger pan or more than one, and it may cook longer.

Scaling down

Halving is easy until you reach one egg. Beat an egg in a cup and use half of it, about 1 ½ tablespoons. Use a smaller pan too, and check the dish sooner.

Questions

Common questions

How do I double a recipe?
Choose Multiplier and enter 2. Every amount in the list doubles, so 1 ½ cups flour becomes 3 cups. For other sizes use Servings: if the recipe serves 4 and you need 6, enter 4 and 6 and every amount is multiplied by 1.5.
Why did my teaspoons turn into tablespoons?
Three teaspoons make one tablespoon, and 16 tablespoons make a cup, so large amounts are easier to measure in the bigger spoon. The scaler switches measures when that makes the number cleaner. Untick the box if you want to keep your original units.
Does everything scale evenly?
Amounts do, but cooking does not. Salt, spices, baking powder and yeast are better added in smaller steps than the math says when you go beyond double. Pan size and cooking time also change, so check a bigger batch earlier than you think you need to.
What about ranges like 2-3 cloves?
Both ends scale, so 2-3 cloves of garlic doubled becomes 4-6 cloves. You can write a range with a hyphen, a dash or the word to.
Which amounts can it read?
Whole numbers, decimals, fractions like 3/4, mixed numbers like 1 1/2, and fraction characters such as ½, ¼, ¾, ⅓, ⅔ and ⅛. A line that does not start with an amount, like salt to taste, is left as written.