Pizza Party Calculator

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

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Pizzas to Order
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Total Slices Needed
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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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