Why this is different from just "doubling"
Simple multiples (2x, 3x, half) are easy to do in your head, but real serving-size needs rarely land on a clean multiple — going from 6 servings to 10, for instance, is a 1.67x scale, not a round number. This converter does that arithmetic for you (target servings divided by original servings), then applies it consistently to whatever ingredient amount you enter, so you get exact scaled amounts rather than rounding awkwardly along the way.
Practical rounding advice
Exact math is useful, but real kitchens don't always need lab precision — if the calculator gives you 1.67 cups of something, rounding to 1⅔ cups (a genuinely measurable amount) is more useful than trying to hit 1.67 exactly. For small amounts like a teaspoon of vanilla, rounding to the nearest ¼ teaspoon is usually close enough that the difference won't be noticeable in the final dish.
FAQ
Does cook time change if I'm scaling servings but not pan size? If you're making more of something like soup or a stir-fry in a bigger pot, cook time is usually similar; if you're baking in a different-sized pan to fit the new quantity, use our pan-size conversion calculator for the time adjustment specifically.
What if my desired serving count is smaller than the recipe? Works the same way — a target of 3 servings from a 6-serving recipe gives a 0.5x multiplier, same math as halving.