OneTool

Recipe Scaler

Scale a recipe up or down without ugly decimal cups.

Ingredient 1

Scaled: 3 cups flour

Ingredient 2

Scaled: 1 1/2 tsp salt

Ingredient 3

Scaled: 4 1/2 tbsp butter

Scale factor

1 1/2×

(6 ÷ 4)

Scaled ingredients

  • 3 cups flour
  • 1 1/2 tsp salt
  • 4 1/2 tbsp butter

What is this tool?

Recipe scaling multiplies each ingredient by target servings ÷ original servings. This tool rounds to nearby cooking fractions (like ¼ or ⅛) so results stay practical for measuring spoons and cups.

How to use it

  1. Set original and target serving counts.
  2. Add each ingredient with quantity, unit, and name.
  3. Copy the scaled list and adjust strong flavors to taste.