🍕 Pizza Calculator

Estimate how many pizzas to order based on guest count, appetite level, and slices per pizza.

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How many slices per person?

Plan 3 slices per adult on average. Hungry guests will eat 4. Most large pizzas have 8 slices.

Ordering tips

Round up — leftover pizza is rarely wasted. Mix at least one vegetarian option for groups of 8+.

Pizza portions for 10, 20, 50, and 100 people

GuestsNormal servingHungry crowd
10 guests5 large pizzas (33 slices)5 large pizzas (40 slices)
20 guests9 large pizzas (66 slices)10 large pizzas (80 slices)
50 guests21 large pizzas (165 slices)25 large pizzas (199 slices)
100 guests42 large pizzas (330 slices)50 large pizzas (397 slices)

Frequently asked questions

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