Recipe Serving Scaler
Scale any recipe up or down to exactly the number of servings you need. Enter your ingredients, set the original and desired serving counts, and the tool will calculate proportional quantities automatically.
Scale Your Recipe
Scaled Ingredients
| Ingredient | Original Amount | Scaled Amount |
|---|
When to Scale a Recipe — and When to Be Careful
Scaling a recipe is often straightforward for savoury cooking. If a pasta sauce serves 4 and you need it to serve 8, doubling every ingredient usually works well. The ratio of flavours stays the same, and the cooking process is essentially the same — just use a bigger pan. However, certain elements of a recipe don't always behave proportionally when you scale, and understanding these nuances can save your dish.
What Doesn't Scale Linearly
Spices and aromatics: strong flavours like chilli, garlic, ginger, and assertive spices rarely need to be doubled when you double a recipe. Start at 1.5× the amount and taste as you go. Over-spicing a large batch is a much harder problem to fix than under-spicing it.
Leavening agents (baking powder and baking soda): when scaling baking recipes significantly — say, tripling or more — don't automatically triple the leavening. Too much baking powder gives baked goods a metallic, soapy taste and can cause them to rise too quickly then collapse. A safe rule of thumb is to increase leavening at no more than 1.5× per doubling of the recipe, and always taste the batter for off flavours.
Cooking time and temperature: cooking a single chicken breast takes far less time than cooking four. Even when you scale ingredients, pan size, oven load, and heat distribution all change. Use an instant-read thermometer and rely on internal temperature rather than time alone. For baked goods, the pan size is critical — a recipe scaled to fill a larger tin may need a lower temperature and longer cooking time to set through evenly.
Tips for Successful Scaling
Write down the original serving count and your target serving count before you start, and keep both numbers visible throughout your prep. Measure scaled amounts carefully, especially for small quantities — 1.33 teaspoons of baking powder is hard to eyeball, so convert to millilitres and use a precision scale or a small measuring cup. If a recipe is being scaled significantly (more than 3× or down to fewer than half the original servings), do a test run first if the dish is for an important occasion.