🍕 Party food calculator
How many pizzas for 20 kids? How much soda? Choose the kind of party, the number of guests, their ages and how long it lasts, and get a ready shopping list with a cost estimate.
How the calculator works
A large 14" pizza has 8 slices. Plan about 1½ slices per child for ages 3–5, 2–3 slices for ages 6–9, 3 for ages 10–13 and 3–4 for teens and adults — less when it isn’t the main meal.
Counted in 2-liter bottles: about ¼ bottle per guest for 1–2 hours, a third for 2–3 hours and nearly half for longer parties, plus a juice box per child at kids’ parties.
One quarter-sheet cake (about 24 small pieces) per 24 guests — or the same number of cupcakes.
One and a half cups per guest (someone always loses theirs), two plates per guest when food is served, and three napkins each.
One per child at kids’ parties and class parties; left out for other events.
Thrifty, regular or splurge — for example a large pizza at $12, $16 or $22, and a goodie bag at $3, $5 or $10.
👪 For parents and teachers. These tools are made to be set up and shared by adults. No accounts, no email, no ads in the tool. We keep only what people type in, and shared pages are deleted automatically after the event (or after six months without changes). Photos in the photo tools never leave your device.
Questions and answers
How many pizzas do I need for 20 kids?
For ages 6–9, with pizza as the main food, the calculator suggests 7 large 14" pizzas (2½ slices each). For ages 3–5, 4 pizzas are plenty.
How much soda or juice for a kids’ party?
For 15 kids at a 2–3 hour party: 6 two-liter bottles plus 15 juice boxes. Add more in summer or for an outdoor party.
Are the prices accurate?
They’re rough estimates of common US prices and vary by store, region and sales. Use them to set a budget.
Can I print the shopping list?
Yes — a checklist with blank lines for anything extra.