# Recipe Scaling Calculator > Adjust ingredient quantities for any recipe instantly based on your desired number of servings. **Category:** Food **Keywords:** recipe, scaling, servings, cooking, ingredients, conversion, baking, portion size **URL:** https://complete.tools/recipe-scaling-calc ## How it calculates The Recipe Scaling Calc uses the following formula: New Quantity = (Original Quantity × New Serving Size) ÷ Original Serving Size. Here, 'Original Quantity' refers to the amount of each ingredient in the original recipe, 'New Serving Size' is the desired number of servings, and 'Original Serving Size' is the number of servings the recipe was originally designed for. The calculation maintains the proportional relationship between the ingredient quantities and the servings. For example, if a recipe serves 4 and requires 2 cups of flour, to scale the recipe for 6 servings, the calculation would be: New Quantity = (2 cups × 6) ÷ 4 = 3 cups of flour. This method ensures that each ingredient is adjusted accurately based on the serving size. ## Who should use this Caterers adjusting recipes for events with varying guest counts, chefs modifying restaurant menu items for daily specials, and home cooks converting family recipes for different occasions, such as holidays or meal prep. Additionally, food scientists conducting recipe experiments in controlled environments may find this tool beneficial for scaling ingredient ratios precisely. ## Worked examples Example 1: A cake recipe serves 8 and calls for 3 cups of sugar. To adjust the recipe for 12 servings, calculate the new quantity: New Quantity = (3 cups × 12) ÷ 8 = 4.5 cups of sugar. Thus, for 12 servings, 4.5 cups of sugar is needed. Example 2: A pasta dish originally serves 6 and requires 1.5 liters of marinara sauce. If a cook wants to make it for 10 servings: New Quantity = (1.5 liters × 10) ÷ 6 = 2.5 liters of marinara sauce. Therefore, 2.5 liters is the new quantity needed for 10 servings. Example 3: A soup recipe serves 4 and uses 500 grams of carrots. To scale it for 2 servings: New Quantity = (500 grams × 2) ÷ 4 = 250 grams of carrots. For 2 servings, 250 grams of carrots will suffice. ## Limitations This tool assumes linear scaling of ingredients, which may not apply to all recipes, particularly those involving chemical reactions like baking. Some ingredients may not scale proportionally; for instance, spices or leavening agents might require adjustments beyond simple calculations. Additionally, precision can be limited by rounding errors, especially with very small ingredient quantities. The tool does not account for variations in ingredient density or moisture content, which can affect the outcome of the scaled recipe. Users should verify the adjustments with practical testing. ## FAQs **Q:** How do I scale a recipe that includes multiple ingredients with different original serving sizes? **A:** Scale each ingredient using its respective original serving size independently to maintain proper ratios. **Q:** Can I use this tool for recipes requiring precise measurements, such as in baking? **A:** While the tool offers scaled quantities, baking often requires precise adjustments due to chemical reactions, so additional testing is recommended. **Q:** What should I do if an ingredient does not scale linearly? **A:** Certain ingredients may need manual adjustments; for example, spices often require personal preference rather than strict scaling. **Q:** Does the tool consider cooking method changes when scaling? **A:** The tool focuses solely on ingredient quantities and does not account for variations in cooking times or methods that may arise from scaling recipes. --- *Generated from [complete.tools/recipe-scaling-calc](https://complete.tools/recipe-scaling-calc)*