Pizza Party Calculator — How Many Pizzas to Order
Work out how many pizzas to order for your guests based on adults, children, and pizza size.
How We Calculate This
This calculator uses standard pizza consumption rates to estimate quantities.
The formula
Total slices = (adults x 3) + (children x 2)
Pizzas = total slices / slices per pizza
Slices per pizza: medium (6), large (8), extra large (10). Always rounded up to whole pizzas.
Frequently Asked Questions
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Last updated: February 2026
All calculations are estimates. Adjust quantities based on your guests and event type.