Cooking fails most often on measurement, not on skill. A recipe that works in one kitchen fails in another because the pan, pot or scoop was a different size. This free tool takes serving dish sizes out of the guessing game. It chooses a serving dish size and count from your guest number and dish type, so a buffet or family meal has enough food without a mountain of leftovers, right in your browser, with no account and no download.
The maths behind the tool is simple and honest: the rule is simple: allow about 400 millilitres per guest for a main dish, 250 millilitres for a side dish, 200 millilitres for a salad, and 150 millilitres for a dessert. Multiply by your guest count to get the total volume, then pick a dish size that holds it in as few dishes as possible. The tool recommends 2 litre dishes for small totals, 3.5 litre dishes for medium totals, and 5 litre dishes for large totals.
for eight guests, that means about 3.2 litres for a main dish, which fits one 3.5 litre dish, while a side dish for the same group needs about 2 litres, which fits one 2 litre dish. For twenty guests, a main dish needs about 8 litres, which is two 5 litre dishes. Splitting food across two dishes also helps a buffet, because guests can serve from both ends of the table.
Use the tool before you shop, not after. buy one size up when the dish is the only main course, when your guests are hungry, or when the dish must sit out for a long buffet. Food looks generous in a dish that is three quarters full, but it looks stingy in a dish that is barely covered. Keep hot food hot with a lid or a warming tray, and refill small dishes often rather than letting one huge dish go cold.
Watch out for the usual trap: the most common mistake is counting guests but forgetting the dish type. A salad for twenty guests and a main dish for twenty guests need very different volumes, and using one number for both leaves one dish short and the other overflowing. Another mistake is buying a dish that fits your oven but not your table: measure the table space too, especially for a buffet with several dishes.
Here is how a typical session goes. Open the tool, enter the numbers you already know, and read the result before you change anything else. Then change one input at a time and watch how the result moves: that single habit teaches you more about sizes than any table, because you see which input matters most. Try your own real numbers, not just the defaults, and compare the result with the pan, pot or scoop sitting in your cupboard right now. If the result surprises you, measure again: a wrong diameter or a guessed height is the usual cause, not a fault in the tool.
Plan the whole job around the number the tool gives you. If the volume changes, the cooking time, the dish size and the serving count all change with it, so check them together instead of fixing one and forgetting the rest. Write the result on the recipe card, so next time you cook the same dish you start from the right number instead of measuring again.
This tool suits beginners and experienced cooks alike. Beginners get a safe number without learning formulas, and experienced cooks get a fast check before scaling a recipe up for a party or down for two people. Both groups avoid the same waste: food that overflows, dishes that come up short, and batches that bake unevenly.
Save this page for your next cooking session. The tool is free, works on a phone or a computer, and needs no sign-up. Enter your numbers, read the result, and cook with a plan instead of hoping the size works out.
Versión en español de esta herramienta