Pizza Party Calculator: how much pizza do you need?
Count your guests, choose appetite and sides, and get a practical pizza estimate using Godfather’s San Antonio slice counts. No email needed.
Find your party’s pizza number.
Change any setting. Your recommendation updates instantly — no submit button or page reload required.
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Step 1 of 3For 17 guests · regular appetite · pizza only
One Large Pizza Pack plus two additional Larges. Check current menu pricing.
How many pizzas for 10, 17, 20, 25 or 50 people?
One planning assumption, three sizes. This chart uses adults at three slices each, with pizza as the main meal.
| Guests | Slices needed | Large (10 slices) | Jumbo (12 slices) | Medium (8 slices) |
|---|---|---|---|---|
| 10 people | 30 slices | 3 Large | 3 Jumbo | 4 Medium |
| 15 people | 45 slices | 5 Large | 4 Jumbo | 6 Medium |
| 16 people | 48 slices | 5 Large | 4 Jumbo | 6 Medium |
| 17 people | 51 slices | 6 Large | 5 Jumbo | 7 Medium |
| 18 people | 54 slices | 6 Large | 5 Jumbo | 7 Medium |
| 20 people | 60 slices | 6 Large | 5 Jumbo | 8 Medium |
| 25 people | 75 slices | 8 Large | 7 Jumbo | 10 Medium |
| 30 people | 90 slices | 9 Large | 8 Jumbo | 12 Medium |
| 40 people | 120 slices | 12 Large | 10 Jumbo | 15 Medium |
| 50 people | 150 slices | 15 Large | 13 Jumbo | 19 Medium |
All recommendations are rounded up. The table assumes no sides and a regular appetite. The tool above adjusts for children, teenagers, larger appetites, and accompanying food.
The pizza math, explained in plain English.
The assumptions are a starting point, not a promise about exactly how much each person will eat.
How we estimate appetite
Adults: 3 slices each. Teens (13–17): 4 each. Kids (4–12): 2 each. Light appetite multiplies the estimate by 0.8; hungry by 1.25. Light sides reduce pizza demand by 10%; a full spread by 25%. All adjustments are planning choices, not scientific consumption statistics.
Why the final number rounds up
Only whole pizzas can be ordered. For 17 adults, 17 × 3 = 51 slices. With a Large cut into 10 pieces, 51 ÷ 10 = 5.1, so you need six Large pizzas to cover the plan. That produces 60 slices, nine more than the target. Actual size and portion preferences still matter.
Ordering for a crowd? Start with Pizza Packs.
A Godfather’s Large Pizza Pack includes four one-topping Large pizzas — 40 listed slices in total. If the calculator recommends eight Larges, that is two Pizza Packs. For six Larges, you could choose one Pack plus two individual pizzas. A pack is a convenient option, but the cheapest combination depends on live pricing and toppings.
See current Pizza Packs ↗Check the online menu for current Pizza Pack pricing, contents, fees and availability.
Three ways to make the order go smoothly.
Get the headcount right, match the food to the crowd, then confirm logistics before the event.
Separate adults, teens and kids.
Twenty adults are not the same as ten adults plus ten children. Estimate who will actually eat pizza, adjust for large appetites, and treat toddlers or very young children individually.
Keep simple choices in the mix.
Pepperoni and cheese are easy crowd options. Add Classic Combo, Taco Pie, or Veggie for variety. If you buy one-topping Pizza Packs, check which pizzas qualify before adding specialty pies separately.
Call ahead for larger events.
Ask about prep time, pickup versus delivery, venue access and any dietary requirements. For 50 or more guests, contact the store ahead of time so the kitchen can confirm the order and timing.
Pizza sizes at Godfather’s San Antonio.
Use the store’s listed slice counts; pizza diameter and crust availability can vary by item.
| Menu size | Listed slices | Simple planning use |
|---|---|---|
| Individual | 6 | Personal or shared small order |
| Small | 6 | Smaller orders and light eaters |
| Medium | 8 | Smaller gatherings; available in calculator |
| Large | 10 | Primary group-planning size; Pizza Packs |
| Jumbo | 12 | Fewer pies for bigger groups, when available |
The local menu is the source of these counts. A slice is a planning unit, not a standardized serving weight. For full menu options, see Godfather’s San Antonio menu.
Kids’ parties, wings and extra-hungry groups.
Party types change the estimate. Here's how to interpret the result before you order.
Birthday parties and school events
Start at two slices for children ages 4–12, then count parents separately. For example, 10 kids plus 5 adults means 10 × 2 + 5 × 3 = 35 slices, or four Larges before the sides adjustment. Confirm allergens and food preferences with the host and restaurant.
Pizza and wings for 20 people
Twenty adults eating pizza as the main meal yields six Larges. Select Full spread if wings and other sides make up a substantial second part of the meal; this lowers the pizza estimate to five Larges. The calculator does not determine the number of wings — ask the store about wing portion sizes.
Pizza party calculator FAQs.
Direct answers to the questions people search while planning a party.
How many pizzas do I need for 17 people?
For 17 adults eating an estimated three slices each, plan on 51 slices: 6 Large Godfather’s pizzas at 10 slices per pie. If everyone eats lightly or you serve substantial sides, your total may be lower. Use the calculator to adjust.
How many pizzas should I order for 20 people?
For 20 adults with pizza as the main meal, plan on 60 slices, or 6 Large pizzas (10 slices each). For a group eating a full spread of sides, the calculator estimates 45 slices, or 5 Larges. Adjust for teens and children.
How many pizzas for 25 people?
At three slices per adult, 25 people need approximately 75 slices. That rounds up to 8 Large pizzas or 7 Jumbo pizzas using this location’s published slice counts. Eight Larges also equal two four-Large Pizza Packs if you choose the one-topping bundle.
How much pizza for 50 people?
For 50 adults at three slices each, plan about 150 slices: 15 Large pizzas or 13 Jumbo pizzas. If your group only needs two slices each, that is 100 slices, or 10 Larges. For a large event, call ahead to coordinate timing.
How many people will four Large pizzas feed?
Four Godfather’s Large pizzas provide 40 slices. That is enough for roughly 13 adults at three slices each, or up to 20 lighter eaters at two slices each. The restaurant’s Large Pizza Pack is advertised as feeding about 12–16 people, depending on appetite and sides.
How many pizzas for a kids’ birthday party?
Start with about two slices per child ages 4–12. For 20 children, that is roughly 40 slices, or 4 Large pizzas. Include parents and teenagers separately, and check any allergies or dietary needs with the restaurant.
How much pizza and wings do I need for 20 people?
For 20 adults, start at six Larges if pizza is the main food. If wings and other substantial sides form a full meal, the calculator’s planning adjustment brings that to about 5 Larges. Wing quantities depend on whether they are an appetizer or a second main course, so plan those separately.
How does the pizza party calculator work?
The tool starts from planning assumptions of three slices per adult, four per teenager, and two per child ages 4–12. It adjusts for appetite and sides, rounds the total slices up, and divides by the selected Godfather’s pizza size. These are editable estimates, not measured consumption averages or guaranteed servings.
Are Pizza Packs always the cheapest choice?
Not necessarily. The local online menu lists a Pizza Pack of four one-topping Large pizzas, but specialty pizzas, promotions, and individual pricing can change the comparison. The tool shows a practical bundle combination when it fits, not a guaranteed lowest-price cart. Check the live menu.
Does the calculator work for other pizza restaurants?
The guest-appetite assumptions can be reused, but the slice counts are tailored to Godfather’s Pizza San Antonio: Medium 8, Large 10, Jumbo 12. Other restaurants may use different cuts and dimensions, so recheck their actual menu before ordering.