Family & Kids
Birthday Party Cake & Pizza
Calculate cake slices, pizza slices, and party costs for any guest count.
Plan kids parties without over- or under-buying. Estimates cake portions, pizza slices, and total cost.
Estimated Total
$117.00
- pizza
- 4 pizzas (28 slices)
- cake
- 9x13" cake
- per Person
- $5.85/person
Formula and method
Slices = Kids + (2 × Adults); Pizzas = ceil(Slices / 8)
Adults eat ~2 slices, kids ~1. Cake portion sized to total guests.
Worked examples
12 kids + 8 adults
- Number of Guests:
- 12
- Adults Attending:
- 8
- Pizza Cost Each ($):
- 18
- Cake Cost ($):
- 45
Estimated Total: $117.00
Assumptions and limits
- 8 slices/pizza
This tool provides an educational estimate. Rules, rates and personal circumstances can change the answer. Review the assumptions before relying on a result. Report a correction.
Common mistakes to avoid
- Underestimating adult appetite.
Frequently asked questions
Vegetarian?
Order 1 in 4 pizzas as veggie.