Skip to content

Pizza party calculator

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

Guest list

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

Appetite and meal

Appetite preset

Typical meal.

Pizza format and buffer

Used in the order summary.

This number drives the calculation.

Applied before pizzas round up.

Flavor split

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

Adds up to 100%.

Dietary reservations

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

0% of guests


How the pizza count works

Slices
Each guest group times its slice rate. A standard appetite is 3 slices per adult, 4 per teen and 2 per child.
Sides
Substantial sides cut every group’s slices by 20%.
Pizzas
The buffer is added to the total, then the slices round up to whole pizzas.
Types
Dietary pizzas are reserved first, rounded up. The rest split by flavor, and the largest remainders get the last pizzas.
Leftovers
The leftover range assumes guests eat up to 10% more or less than planned.

Frequently asked questions

Plan 3 slices per adult, 4 per teen and 2 per child for a typical meal. Light eaters take about 2 slices per adult and big appetites 4.

For 12 adults, 4 teens and 4 children with a 15% buffer, order 9 pizzas of 8 slices.

Yes. Substantial sides such as salads or wings cut every guest’s slices by 20%.

Enter the share of guests who need them. The calculator reserves whole dietary pizzas first, rounded up, and splits the rest of the order by flavor.


Drinks for pizza night


More free tools