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Recipe Scaler

Scale recipe ingredient quantities for different serving sizes. Enter the original amount and servings, then the new serving count. Outputs exact values and cooking-friendly fractions.

Enter Values

Original Servings

New Servings

Ingredient Quantity

Enter as decimal (3/4 = 0.75, 1/3 = 0.333)

Result

Enter values above and click Calculate to see your result.

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Formula

Scaled Quantity = Original Quantity x (New Servings / Original Servings)

To scale a recipe, multiply each ingredient quantity by the ratio of new servings to original servings. The calculator converts results to cooking-friendly fractions (1/4, 1/3, 1/2, 3/4, etc.) since measuring cups use these denominations.

Worked Example

Recipe for 4 people uses 3/4 cup sugar. Scale to 7 people: Factor = 7 / 4 = 1.75 Scaled = 0.75 x 1.75 = 1.3125 cups Cooking measure: 1 1/4 cups (nearest practical fraction)

What Is Recipe Scaling?

Recipe scaling is the process of adjusting the ingredient quantities in a recipe to change the total yield, either increasing it for more servings or decreasing it for fewer. This mathematical adjustment ensures that the proportions and flavor profile of the original dish are maintained, regardless of the new serving size. The core principle involves calculating a 'scaling factor' by dividing your desired new number of servings by the recipe's original serving count. Every ingredient quantity is then multiplied by this scaling factor. This method is crucial in kitchens worldwide, from home cooks preparing for a party to professional chefs managing large banquets or reducing a recipe for a tasting menu. Understanding how to accurately scale recipes prevents wasted ingredients and ensures consistent, delicious results every time you cook.

Essential for adapting recipes to suit various group sizes, from individual meals to large gatherings.
Maintains the intended balance of flavors and the desired consistency of the dish.
Crucial for both increasing ingredient amounts (scaling up) and decreasing them (scaling down).
Helps prevent food waste by accurately producing only the required amount of food.

Mastering recipe scaling empowers you to customize your culinary creations with confidence and precision. Use the Calculory.AI Recipe Scaler to effortlessly adjust your favorite recipes and simplify your kitchen tasks.

You can also calculate changes using our Fraction Calculator, Ratio Calculator or Proportion Calculator.

Frequently Asked Questions

How do I enter fractions?

Enter fractions as decimals: 1/4 = 0.25, 1/3 = 0.333, 1/2 = 0.5, 2/3 = 0.667, 3/4 = 0.75. The calculator converts the result back to cooking fractions.

Does scaling work for baking?

Scaling works well for most ingredients, but baking is chemistry-sensitive. Leavening agents (baking soda, yeast) may not scale linearly for large changes. Cooking times may also need adjustment.

What is the scale factor for doubling?

Doubling means multiplying by 2. Halving means multiplying by 0.5. The calculator shows both for reference alongside your custom scaling.

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