Recipe Scaler

How to Scale a Recipe

Scaling a recipe adjusts all ingredient amounts proportionally when you want more or fewer servings than the original recipe provides.

The formula

Scaled Amount = Original Amount × (Desired Servings ÷ Original Servings)

The ratio (Desired ÷ Original) is your scaling multiplier. Apply it to every ingredient.

Step-by-step

1. Enter how many servings the original recipe makes.
2. Enter how many servings you want.
3. Enter the amount of one ingredient from the recipe.
4. Repeat for each ingredient to get the scaled amounts.

Worked example

A recipe for 4 servings calls for 2 cups of flour. You want 6 servings. Multiplier = 6 ÷ 4 = 1.5. Scaled flour = 2 × 1.5 = 3 cups.

Cooking tips

Scaling works perfectly for most ingredients. Exceptions: cooking times may not scale linearly (a doubled recipe may need only 50% more time, not 100%). Seasonings (salt, spices) often scale better at 80–90% of the calculated amount — taste and adjust. Baking recipes are more sensitive to scaling than stovetop recipes.