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How Much Pizza for a 100 Guests Graduation Party?

Graduation Party • 100 guests

Your Total
44
pizzas
of pizza
306
total servings
3.1
per person
15%
buffer

Note: This assumes pizza is your main food. Planning a buffet spread? See our Graduation Party Planner for balanced quantities.

📐 Why This Amount Works

1
Estimate actual eaters
100 guests × 85% eating rate
At large events, about 85% of guests will eat full servings. 85 eaters
2
Calculate servings (as main dish)
85 eaters × 3 pizzas per person
As a main dish, plan for 3 pizzas per person. 255 base servings
3
Apply graduation party modifier
× 1.2 (+20% for pizza)
Graduation Partys typically consume 20% more pizza than average. 306 pizzas needed
4
Convert to pizzas
306 pizzas ÷ 8 per pizza
Each pizza provides 8 pizzas. 38.3 pizzas (raw)
5
Add 15% buffer & round up
38.3 × 1.15 = 44.0, rounded up
Always round up and add a buffer. Running out of food is worse than having leftovers! 44 pizzas
Caterer-Tested Formula
Our calculations are based on real event data from professional caterers and party planners.

📊 Quick Reference: Pizza by Guest Count

Guests Pizza Needed Total Servings
25 guests 11 pizzas 77 servings
50 guests 22 pizzas 153 servings
75 guests 33 pizzas 230 servings
100 guests (you) 44 pizzas 306 servings
150 guests 66 pizzas 459 servings
200 guests 88 pizzas 612 servings

* All calculations include a 15% buffer. Amounts for graduation party as main dish.

🛒 Your Complete Shopping List

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Pizza
44 pizzas
Paper plates — For slices and seconds
150 plates Buy →
Napkins — Pizza is messy!
300 napkins Buy →
Red pepper flakes — Table condiment
2 shakers
Parmesan cheese — Grated for topping
1 container

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💡 Pro Tips for Graduation Party Food

  • Graduation parties often span 4+ hours - plan for grazing, not a sit-down meal.
  • Young adults eat more than you think - add 20% to your calculations for ages 18-25.
  • Set up a separate kids' food station with pizza and sliders to keep parents happy.
  • Outdoor graduation parties need food that won't spoil - keep hot foods hot and cold foods cold.
  • Photo ops happen constantly - finger foods beat anything requiring utensils.

Buying Guide

Graduation parties are grazing events. Finger foods work best - pizza slices, sliders, wings, and appetizers that guests can grab while mingling. If your graduate is 21+, expect their friends to eat AND drink more than the older guests.

🍺 Complete Your Bar

Don't forget the drinks! See our drink calculators for this event:

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Planning a different event?

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