Recipe Scaling Calculator

Recipe Scaling Calculator

Use the Recipe Scaling Calculator to adjust recipe ingredients for different serving sizes based on original and desired servings, measurement units, and scaling preference.

Servings (1–50)
Servings (1–100)
E.g., linear, adjusted

Recipe Scaling Calculator Formulas

The Recipe Scaling Calculator uses these formulas to adjust ingredient quantities.

  1. Scaling Factor:

    \[ \text{SF} = \frac{D}{O} \]

    Where \( D \) is desired servings, \( O \) is original servings.

  2. Adjusted Scaling Factor (Adjusted Preference):

    \[ \text{ASF} = \text{SF} \times (1 – 0.05 \times \ln(\max(1, D/10))) \]

    Reduces quantities for larger batches.

  3. Scaled Ingredient Quantity:

    \[ \text{SIQ} = Q \times (\text{SF} \text{ or } \text{ASF}) \]

    Where \( Q \) is original quantity.

  4. Scaling Efficiency (%):

    \[ \text{SE} = \frac{\text{SF}}{\text{SIQ}/Q} \times 100 \]

    Categories: High (>90%), Moderate (75–90%), Low (<75%).

Recipe Scaling Calculator Examples

These examples show how the Recipe Scaling Calculator adjusts recipe ingredients.

Example 1: Linear Scaling for Cake

Inputs: Original Servings = 4, Desired Servings = 8, Scaling Preference = Linear, Ingredients = 2 cups Flour, 1 cup Sugar

  • Scaling Factor: \[ \frac{8}{4} = 2 \]
  • Scaled Flour: \[ 2 \times 2 = 4 \text{ cups} \]
  • Scaled Sugar: \[ 1 \times 2 = 2 \text{ cups} \]
  • Scaling Efficiency: \[ \frac{2}{4/2} \times 100 = 100\% \]
  • Category: High (>90%)

Result: Scaled Ingredients: 4 cups Flour, 2 cups Sugar, Scaling Efficiency: High

Example 2: Adjusted Scaling for Soup

Inputs: Original Servings = 6, Desired Servings = 12, Scaling Preference = Adjusted, Ingredients = 3 cups Broth, 0.5 tsp Salt

  • Scaling Factor: \[ \frac{12}{6} = 2 \]
  • Adjusted Scaling Factor: \[ 2 \times (1 – 0.05 \times \ln(12/10)) \approx 1.974 \]
  • Scaled Broth: \[ 3 \times 1.974 \approx 5.922 \text{ cups} \]
  • Scaled Salt: \[ 0.5 \times 1.974 \approx 0.987 \text{ tsp} \]
  • Scaling Efficiency: \[ \frac{2}{5.922/3} \times 100 \approx 101.32\% \]
  • Category: High (>90%)

Result: Scaled Ingredients: 5.92 cups Broth, 0.99 tsp Salt, Scaling Efficiency: High

Example 3: Linear Scaling for Cookies

Inputs: Original Servings = 10, Desired Servings = 20, Scaling Preference = Linear, Ingredients = 1.5 cups Butter, 200 grams Chocolate

  • Scaling Factor: \[ \frac{20}{10} = 2 \]
  • Scaled Butter: \[ 1.5 \times 2 = 3 \text{ cups} \]
  • Scaled Chocolate: \[ 200 \times 2 = 400 \text{ grams} \]
  • Scaling Efficiency: \[ \frac{2}{3/1.5} \times 100 = 100\% \]
  • Category: High (>90%)

Result: Scaled Ingredients: 3 cups Butter, 400 grams Chocolate, Scaling Efficiency: High

Recipe Scaling Calculator Guide

Learn how to use the Recipe Scaling Calculator to adjust your recipes efficiently.

Steps to Use the Calculator

  • Enter Original Servings: Input the original number of servings (1–50, e.g., 4) using the keypad.
  • Enter Desired Servings: Input the desired number of servings (1–100, e.g., 8).
  • Select Scaling Preference: Choose Linear or Adjusted.
  • Add Ingredients: Enter up to 5 ingredients with quantity, unit, and name.
  • Calculate: Click “Calculate” to view scaled ingredients.
  • Interpret Results: Review scaled quantities, Scaling Factor, and Scaling Efficiency (High: >90%, Moderate: 75–90%, Low: <75%).
  • Share or Embed: Share results or embed the calculator.

Note: This is a simplified model. Adjustments may be needed for cooking times or pan sizes. Consult recipe sites like Allrecipes or Serious Eats for scaling tips.