Scale any recipe up or down to match your desired number of servings. Add ingredients, set original and target portions, and get instantly recalculated amounts with smart unit handling. Pure client-side.
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Recipe Scaler helps you adjust any recipe to match your desired number of servings. Whether you are cooking for two or feeding a crowd, simply enter the original recipe's serving size, your target serving size, and all the ingredients. The calculator instantly computes the scaled amounts using precise multiplication while keeping units intact. Perfect for meal prep, dinner parties, baking, and scaling family recipes. All calculations happen in your browser — no data is sent to any server.
The scaler divides your target servings by the original servings to get a scale factor. Then it multiplies every ingredient amount by that factor. For example, scaling a 4-serving recipe to 6 servings gives a 1.5x factor, so 2 cups of flour becomes 3 cups.
The scaler preserves your original units to avoid confusion in the kitchen. It does not auto-convert units (e.g., cups to grams) because precise conversions depend on the ingredient density. We recommend using a kitchen scale for best accuracy when needed.
The tool shows precise decimal amounts (e.g., 1.33 cups). In practice, 0.33 cups is about 5 tablespoons + 1 teaspoon, and 0.5 cups is 8 tablespoons. You can round to the nearest practical measurement.
Currently, recipes are not saved to any server for privacy. You can copy the scaled recipe to your clipboard and paste it into a notes app or recipe manager. A save-to-local feature may be added in the future.