Recipe Scaler

Scale any recipe up or down by entering your original and desired serving sizes plus up to six ingredients.

Original Servings

Desired Servings

Ingredient 1 Name(Enter a name (e.g. Flour))

Ingredient 1 Amount

Ingredient 1 Unit

Ingredient 2 Name(Enter a name (e.g. Sugar))

Ingredient 2 Amount

Ingredient 2 Unit

Ingredient 3 Name(Enter a name (e.g. Eggs))

Ingredient 3 Amount

Ingredient 3 Unit

Ingredient 4 Name

Ingredient 4 Amount

Ingredient 4 Unit

Ingredient 5 Name

Ingredient 5 Amount

Ingredient 5 Unit

Ingredient 6 Name

Ingredient 6 Amount

Ingredient 6 Unit

Results

Visualization

How It Works

Scaling a recipe is simple multiplication: multiply every ingredient by (desired servings / original servings). This calculator handles the math and shows results in practical cooking fractions.

The Formula

Scaled Amount = Original Amount x (Desired Servings / Original Servings)

Variables

Scaling Factor — Desired servings divided by original servings
Original Amount — Amount listed in the original recipe
Scaled Amount — New amount after applying the scaling factor

Example

A recipe for 4 needs 2 cups of flour. Scaling to 6 servings: factor = 6/4 = 1.5, so you need 2 x 1.5 = 3 cups of flour.

Tips

Spices and salt do not always scale linearly. When doubling, start with 1.5x spices and taste.
Baking powder and baking soda should be scaled exactly -- they are chemical reactions.
Eggs are hard to split. For half an egg, whisk it and measure half by volume.
Cooking times do not scale linearly. A doubled casserole might need only 25% more time.
When scaling down, keep oven temperature the same but check for doneness earlier.