Party
Pizza Party Calculator
How many pizzas to order for a group, by appetite and pizza size.
pizzas = total slices needed ÷ slices per…
Also called how many pizzas for a party · pizza for guests
Food & Drink · 9 calculators
Party Calculators
How many pizzas, drinks, snacks, cake servings, ice, tables and chairs you need, plus party budgets and cost per guest.
Party
Drink Quantity Calculator
Drinks to buy for an event — alcoholic and soft — by guest count and duration.
drinks = drinkers × hours × drinks per ho…
Also called party drinks calculator · how much alcohol for a party
Party
Food Quantity Calculator
Total food to buy for an event, broken down into courses and categories.
quantity = per-person guideline × guests …
Also called catering calculator · food for a party
Party
Cake Servings Calculator
How many portions a cake gives, and the cake size needed for a guest count.
servings = cake area ÷ portion area
Also called cake portions calculator · how many people does a cake serve
Party
Event Budget Calculator
Full event budget with venue, catering, staff and marketing, and the break-even ticket price.
total = fixed costs + per-head costs × at…
Also called party budget calculator · conference budget
Party
Ice Calculator
Ice needed for a party — for drinks and for chilling bottles in coolers.
ice = guests × base allowance × weather f…
Also called how much ice for a party · ice quantity calculator
Party
Snack Quantity Calculator
Crisps, nuts, dips and nibbles for a party, by guest count and duration.
total = per-person guideline × duration f…
Also called party snacks calculator · how many crisps
Party
Seating Calculator
Tables needed for a seated event, with the floor space and layout.
tables = guests ÷ seats per table, rounde…
Also called table seating calculator · how many tables
Party
Cost Per Attendee Calculator
Cost per head at different attendance levels, showing how fixed costs spread.
per attendee = (fixed + variable × attend…
Also called per attendee cost · event cost per person
Key party formulas
| Pizza Party | pizzas = total slices needed ÷ slices per pizza, rounded up |
|---|---|
| Drink Quantity | drinks = drinkers × hours × drinks per hour |
| Food Quantity | quantity = per-person guideline × guests × allowance |
| Cake Servings | servings = cake area ÷ portion area |
| Event Budget | total = fixed costs + per-head costs × attendees + contingency |
| Ice | ice = guests × base allowance × weather factor + bottle chilling |
| Snack Quantity | total = per-person guideline × duration factor × guests |
| Seating | tables = guests ÷ seats per table, rounded up |
| Cost Per Attendee | per attendee = (fixed + variable × attendees) ÷ attendees |