How many pizzas for 18 people?
Order 7 large pizzas for 18 adults. Make it 5 for light eaters or 9 for a very hungry group. Change the details below to fit your party.
Each pizza drawn with its slices. Faded slices are the leftovers.
18 people, every pizza size
The count changes a lot with the size you order. A small pizza has less than half the area of an extra large one.
| Pizza size | Light eaters | Average | Very hungry |
|---|---|---|---|
| 10-inch small (6 slices) | 9 | 14 | 18 |
| 12-inch medium (8 slices) | 7 | 10 | 13 |
| 14-inch large (8 slices) | 5 | 7 | 9 |
| 16-inch extra large (8 slices) | 4 | 6 | 7 |
| 18-inch extra large (8 slices) | 3 | 5 | 6 |
| Guests | Pizza only | With sides or dessert |
|---|---|---|
| All adults | 7 | 6 |
| Half adults, half kids | 6 | 5 |
| All kids | 5 | 4 |
The math for 18 people
An average adult eats 3 slices of a large pizza. For 18 people that is 18 × 3 = 54 slices. A large pizza has 8 slices, so 54 ÷ 8 = 6.75, which rounds up to 7 pizzas. You will have about 2 slices to spare.
Light eaters average 2 slices, which brings the order down to 5. A hungry group at 4 slices each needs 9.
Ordering for a group of 18
A group of 18 is the classic pizza party: a birthday, a team dinner, a game night. Stick to large or extra large pizzas. You get more pizza for the money and fewer boxes to stack.
For toppings, make about a third of the order cheese and a third pepperoni, then split the rest between a vegetable pizza and one or two favorites. Ask about allergies, and make sure at least one pizza works for vegetarians.
Between two numbers? Round up. Cold pizza keeps for three to four days in the fridge, and running out is the only real way to get a pizza party wrong.
Questions about pizza for 18
How many large pizzas for 18 people?
Order 7 large 14-inch pizzas for 18 adults with average appetites. That is 56 slices, about 3.1 per person.
How many pizzas for 18 kids?
For 18 children, order 5 large pizzas. Kids eat about 2 slices each, and plain cheese is the safest choice.
How many medium pizzas feed 18 people?
You need 10 medium 12-inch pizzas for 18 average adults. Mediums are smaller than they look: a 12-inch pizza has about a quarter less pizza than a 14-inch.
How many 16-inch pizzas for 18 people?
6 extra large 16-inch pizzas will feed 18 average adults.
How much pizza for 18 people if there are sides?
With wings, salad or dessert on the table, 6 large pizzas is enough for 18 adults. People eat about a quarter less pizza when there is other food.
How many pizzas for 18 hungry people?
For 18 very hungry adults, such as teenagers or a sports team, order 9 large pizzas. That allows 4 slices each.