How Many Slices of Pizza Per Person?

Slices per person by guest type

These numbers are for regular slices from a 14 inch large pizza cut into 8. They are the same numbers our pizza party calculator uses.

Slice size changes everything

"One slice" is not the same everywhere. A big slice from an 8 slice large pizza is about 19 square inches. A slice from a 12 slice party cut is only about 13 square inches. Here is how slice sizes compare:

A simple rule: 3 small slices (party cut, small or medium pizza) are about the same as 2 big slices from an 8 slice large.

When to plan more slices

• Pizza is the only food at the party.
• Your guests are teens, college students or a sports team.
• The party is at dinner time or runs for many hours.
• You are ordering thin crust, which is lighter and less filling.

When you can plan fewer slices

• You are also serving wings, salad, sides or snacks.
• There is cake or dessert, like at a kids' birthday party.
• It is a short lunch, like an office meeting.
• You are ordering deep dish or very loaded pizzas, which are more filling.

The simple formula

1. Multiply each group of guests by their slices: adults x 2, teens x 3, kids x 1.
2. Add them up to get the total slices you need.
3. Divide by the number of slices in one pizza (8 for most large pizzas).
4. Round up to the next whole pizza.

For example, 12 adults and 6 kids need (12 x 2) + (6 x 1) = 30 slices. 30 ÷ 8 = 3.75, so order 4 large pizzas.

Want to know how far one pizza goes? Read how many people a large pizza feeds. Serving wings and drinks too? Try the party food calculator.

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