Pizza Party Calculator

Calculate how many pizzas to order for a party based on guests and appetite.

Pizzas to Order
Total Slices Needed
Extra Slices
Recent Calculations

What Is Pizza Party?

Knowing how many pizzas to order prevents running out (awkward) or over-ordering (wasteful). Most adults eat 2-4 slices.

Formula

Pizzas = ⌈(Guests × Slices Per Person) / Slices Per Pizza⌉

Example

12 guests eating 3 slices each = 36 slices ÷ 8 slices/pizza = 5 pizzas.

Frequently Asked Questions

What size pizza should I order?

Large (14") pizzas are the best value. A large is roughly 2× the area of a small (10") — it's not just 40% bigger!

Should I add extra?

Order 1-2 extra pizzas for a buffer, especially with teenagers or a crowd that's been drinking.

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