Scale recipes up or down with precision. Automatically handles fractions and converts measurements for any number of servings. Perfect for meal prep, parties, or cooking for one.
Enter your recipe details and click Scale Recipe
Scaling recipes is one of the most useful cooking skills, whether you’re meal prepping for the week, cooking for a crowd, or adapting a family recipe for just one or two people. Our calculator takes the math out of the equation, giving you precise measurements every time.
Recipe scaling is based on a simple ratio: new servings divided by original servings equals your scale factor. Multiply each ingredient by this factor to get your scaled amounts. For example, doubling a 4-serving recipe to 8 servings means multiplying everything by 2. Halving it to 2 servings means multiplying by 0.5.
Cooking measurements traditionally use fractions because they’re easier to measure with standard measuring cups and spoons. Our calculator automatically converts decimal results to the nearest common fraction (1/8, 1/4, 1/3, 1/2, 2/3, 3/4) for practical use in the kitchen.
For most recipes, scaling up to 3x works well. Beyond that, consider making multiple batches instead:
“This calculator is so helpful when I need to adjust recipes for dinner parties! I love that it handles fractions automatically. No more math anxiety when scaling my favorite recipes. The export feature is perfect for saving my scaled recipes.”
“I meal prep every week and this tool saves me so much time! I can quickly scale recipes for my weekly batch cooking. The history feature is great for tracking what I’ve made before. Highly recommend!”
“As someone who bakes for small events, I constantly need to scale recipes up and down. This calculator handles all the fraction conversions beautifully, making it so easy to scale my grandmother's old recipes that were written for 4 people.”
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