Pizza party calculator

Turn a mixed guest list into whole pizzas, slices, flavor counts, dietary reservations, and a confidence buffer you can order.

Build the order

Guest counts use whole people. Every slice rate remains editable.

Guest list

Adults

Teens

Children

Appetite and meal

Slices per adult

Slices per teen

Slices per child

Substantial sides are servedReduces every group’s slice rate by 20%.

Pizza format and buffer

Common size

Diameter in inches

Used in the order summary.

Slices per pizza

This number drives the calculation.

Order buffer %

Applied before pizzas round up.

Flavor split

100% of 100%

Whole standard pizzas use largest-remainder rounding after dietary reservations.

Cheese %

Pepperoni %

Veggie %

Dietary reservations

0% of guests

Each non-zero group reserves whole pizzas before the flavor split. Ask the restaurant about cross-contact and preparation.

Gluten-free %

Vegan %

Calculate to see whole pizzas, ordered slices, flavor counts, dietary reservations, expected extras, and the leftover range.