Godfather's Pizza San Antonio
  • Home
  • Order Now
  • Menu
  • Tools
    • Party Pizza Calculator
    • Catering Cost Calculator
    • What Should I Order? Quiz
    • Build Your Own Pizza
  • Contact
  • About
  • Blog
Select Page

How Much Pizza Do You Need for a Group?

by The Pizza Guy | Sep 22, 2026 | Pizza 101

Godfather's Pizza pizza fresh from the oven

How Much Pizza Do You Need for a Group?

The Quick Version

Plan for about three slices per adult and two per child. A large pizza is commonly cut into 8 slices, so a group of 10 adults works out to roughly 4 large pizzas. Round up when the crowd skews hungry, when the event runs long, or when pizza is the only food. Running a little over is safer than running short.

  • Three slices per adult is the baseline. Two for a child, and closer to four for teenagers or an active, hungry crowd.
  • A large is usually 8 slices. That single number does most of the planning work once you know your headcount.
  • Sides change the math. Wings, breadsticks, and salads stretch the pizzas further, so you can order slightly fewer pies.
  • Round up, not down. Leftover pizza reheats well. Running out mid-party does not.

The single hardest part of ordering for a group is guessing the quantity. Order too little and someone goes hungry. Order too much and you are staring at a stack of untouched boxes. The good news is that the math is simple once you anchor on two numbers: slices per person, and slices per pizza.

Start With Slices Per Person

The standard planning figure is three slices per adult. That covers most people at a normal mealtime. Adjust from there. Children eat about two. Teenagers and anyone coming off a workout or a long day can put away four. If your event runs for hours rather than a single sitting, people graze, so plan higher.

Then Divide by Slices Per Pizza

A large pizza is commonly cut into 8 slices. Take your total slices needed and divide by 8, then round up to whole pizzas. That is the entire calculation.

A Quick Reference

Based on three slices per adult and a large cut into 8 slices:

Group size Slices needed Large pizzas
5 adults 15 2
10 adults 30 4
15 adults 45 6
20 adults 60 8
30 adults 90 12

For a mixed crowd of adults and kids, count the kids at two slices each and the adults at three, add it up, and divide by 8. For a group with a lot of teenagers, bump the adult figure to four and recalculate.

Let the Sides Do Some Work

Pizza does not have to carry the whole meal. Adding wings, breadsticks, cheesesticks, or a couple of salads means people fill up on more than slices, so you can order one or two fewer pizzas than the table suggests. For a big group, a spread of pizza plus sides also gives people options, which matters when you are feeding a range of tastes.

Feeding a real crowd? Godfather’s Pizza on Highway 151 makes it simple. The Pizza Pack gets you four large one-topping pizzas at once, and a quick call to (210) 750-2222 lets us build the order around your exact headcount.

Frequently Asked Questions

How many slices are in a large pizza?

A large is commonly cut into 8 slices. You can ask for it cut into more, smaller slices for an event where people are grazing rather than sitting down to a meal.

How many pizzas for 20 people?

At three slices per adult, 20 people need about 60 slices, which is roughly 8 large pizzas. Adjust up if the group is especially hungry or the event runs long.

How many pizzas for 30 people?

About 90 slices, or roughly 12 large pizzas, at three slices per person. Adding sides lets you trim that by a pizza or two.

Is it better to order more or fewer pizzas?

More. Leftover pizza refrigerates and reheats well, so a little extra is never wasted. Running short in the middle of an event is the harder problem to fix.

How far ahead should I order for a group?

Call ahead for any large order so the kitchen can prepare and your pizzas come out together and hot. The bigger the order and the more fixed your start time, the more lead time helps.

Order Online
Call (210) 750-2222
In This Article
  • Start With Slices Per Person
  • Then Divide by Slices Per Pizza
  • A Quick Reference
  • Let the Sides Do Some Work
Ready to Order?
Call (210) 750‑2222 or order online for pickup or delivery.
Order Now →

Our Latest Blog

Spurs Watch-Party Pizza: Feeding the Crew at Home

Spurs Watch-Party Pizza: Feeding the Crew at Home

Home

Menu

Order Now

Pizza Blog

Godfather's Pizza San Antonio
8530 TX-151, San Antonio, TX 78245
Phone: (210) 750-2222

2,000 CALORIES A DAY IS USED FOR GENERAL NUTRITION ADVICE, BUT CALORIE NEEDS VARY. ADDITIONAL NUTRITION INFORMATION AVAILABLE UPON REQUEST.