Recipe Scaler
Scale any recipe up or down for any number of servings. Enter your ingredients and target serving count — scaled amounts update instantly with clean fraction display (½, ¾, ⅓, and more).
Scale factor
×2.00
Ingredients
How to scale a recipe
The scaling formula is simple: divide your target servings by the original servings to get a scaling factor, then multiply every ingredient amount by that factor. For example, scaling a 4-serving recipe to 10 servings gives a factor of 2.5. An ingredient that was 1 cup becomes 2½ cups.
Does scaling always work perfectly?
For most recipes, linear scaling works well for ingredients. However, some things don't scale linearly. Baking powder and baking soda often need less than the calculated amount when scaling up (use about 25% less and taste). Salt and spices should be added conservatively and adjusted to taste. Cooking time and pan size also don't scale linearly — a recipe scaled 3× may still cook in a similar time if spread across multiple pans.
Tips for scaling baked goods
Baking is more sensitive to scaling than cooking. When scaling up significantly (3× or more), make multiple batches rather than one large batch to maintain texture and even baking. When scaling down, be especially careful with leavening agents — the resulting baked good may rise differently. Egg amounts sometimes need to be rounded to the nearest whole egg, which can affect texture slightly.
