How Much Pizza to Order for a Party (Simple Guide)

September 7, 2026

Plan on about 3 slices of pizza per adult and 2 per child. A large pizza has roughly 8 slices, so for a party of 10 adults you want about 4 large pizzas. Appetites, sides, and party length change the math, but this simple rule gets you close every time. Below is a slices per person chart by group size and when it makes sense to switch to catering trays from Bella Pizza in Hasbrouck Heights, NJ.

How many slices of pizza per person?

  • Adults: about 3 slices each.
  • Kids: about 2 slices each.
  • Big eaters or a long event: add an extra slice per person.
  • Lots of sides, salad, or wings: you can drop to 2 slices per adult.

How much pizza for a party, by group size

Based on 3 slices per adult and 8 slices per large pizza.

People Slices needed Large pizzas
5 15 2
10 30 4
15 45 6
20 60 8
30 90 11 to 12
50 150 19 to 20

When to switch from pizzas to a catering package

Ordering a dozen or more pizzas one by one gets clumsy. Once you are feeding roughly 12 people or more, a catering package is easier and usually a better value, because it bundles pizza with pasta trays, salads, wings, and platters so everyone has options. Bella Pizza offers Italian catering packages sized from about a dozen people up to fifty or more. Order a few days ahead and we handle the rest.

Tips for ordering pizza for a crowd

  • Offer variety. A safe mix is roughly half cheese and pepperoni, the rest specialty and veggie. See the full menu.
  • Add sides. Wings, garlic knots, and salads stretch the pizza and round out the meal.
  • Time it right. Ask for delivery about 15 minutes before you want to serve, so it arrives hot.
  • Round up, not down. Leftover pizza is never a problem. Running out is.

Planning an event in Bergen County or the Meadowlands? Call (201) 426-0998 or see our catering menu for a quote.

Frequently asked questions

How much pizza do I need for 10 people?

About 4 large pizzas, which is roughly 30 slices at 3 slices per adult. Add a fifth pizza if the group are big eaters or there are few sides.

How many slices are in a large pizza?

A large pizza is usually cut into 8 slices. Extra large pies can be cut into 10 or 12.

How much pizza for 20 people?

Plan on about 8 large pizzas, or switch to a catering package that bundles pizza with pasta trays and salads for better value.

Is it cheaper to order catering or individual pizzas for a party?

Once you are feeding a dozen or more, a catering package is usually the better value and far easier, because it bundles pizza with sides in one order.

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