How many pizzas for 100 people?
Order 38 large pizzas for 100 adults. Make it 25 for light eaters or 50 for a very hungry group. Change the details below to fit your party.
Each pizza drawn with its slices. Faded slices are the leftovers.
100 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) | 49 | 74 | 98 |
| 12-inch medium (8 slices) | 35 | 52 | 69 |
| 14-inch large (8 slices) | 25 | 38 | 50 |
| 16-inch extra large (8 slices) | 20 | 29 | 39 |
| 18-inch extra large (8 slices) | 16 | 23 | 31 |
| Guests | Pizza only | With sides or dessert |
|---|---|---|
| All adults | 38 | 29 |
| Half adults, half kids | 32 | 24 |
| All kids | 25 | 19 |
The math for 100 people
An average adult eats 3 slices of a large pizza. For 100 people that is 100 × 3 = 300 slices. A large pizza has 8 slices, so 300 ÷ 8 = 37.5, which rounds up to 38 pizzas. You will have about 4 slices to spare.
Light eaters average 2 slices, which brings the order down to 25. A hungry group at 4 slices each needs 50.
Ordering for an event of 100
Feeding 100 people is a catering order. Speak to the shop several days ahead, ask for a quote in writing, and confirm how many slices they cut each pizza into, because that changes how far the order goes.
Consider 18-inch or party-size pizzas to cut the number of boxes, stagger delivery into three waves, and set out the cheese pizzas first. At this size, sides and salad are cheap insurance against running short.
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 100
How many large pizzas for 100 people?
Order 38 large 14-inch pizzas for 100 adults with average appetites. That is 304 slices, about 3.0 per person.
How many pizzas for 100 kids?
For 100 children, order 25 large pizzas. Kids eat about 2 slices each, and plain cheese is the safest choice.
How many medium pizzas feed 100 people?
You need 52 medium 12-inch pizzas for 100 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 100 people?
29 extra large 16-inch pizzas will feed 100 average adults.
How much pizza for 100 people if there are sides?
With wings, salad or dessert on the table, 29 large pizzas is enough for 100 adults. People eat about a quarter less pizza when there is other food.
How many pizzas for 100 hungry people?
For 100 very hungry adults, such as teenagers or a sports team, order 50 large pizzas. That allows 4 slices each.