Pizza Per Person Calculator
Work out how many pizzas to order so the slices last. Enter how many people are eating, how many slices each one will have, and how many slices come in your pizza size.
- Free
- Works offline after your first visit
- Saves on this device
- No sign-up
- Updated
How it works
Multiply guests by slices per guest to get the slices needed. Divide by the slices in one pizza and round up to a whole pizza.
Three slices per adult is a common plan when pizza is the main food. Hungry teens, or pizza served with very little else, call for more.
Worked example
For 12 guests at 3 slices each, you need 36 slices, which is 5 pizzas of 8 slices.
Questions
How many slices are in a pizza?
A 14 inch pizza is often cut into 8 slices, and a 12 inch pizza into 6. Check how your pizzeria cuts its pies, since it varies.
Should I order extra?
One extra pizza is cheap insurance for a party that runs long. Leftover pizza reheats well for a day or two.
Does this work for a kids party?
Children often eat fewer slices, so lower the number per guest and run the count again for the grown-ups.
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