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About the party food calculator
Type how many adults and kids are coming and how long the party lasts. Pick the kind of party. The calculator makes your shopping list: pizzas, drinks, finger food, chips and dip, ice, plates, cups and napkins — plus cake for a birthday and bottles for the midnight toast on New Year's Eve.
It uses simple party rules of thumb, and the page shows every rule, so you can see how each number is made. Copy the list and take it to the store.
Features
- 5 kinds of party — birthday, game day, New Year's Eve, holiday party and get-together
- Adults and kids — kids eat less pizza and fewer snacks
- Party length — longer parties need more drinks, snacks, cups and napkins
- Pizza or finger food — untick Pizza is the main food and the snacks become the meal
- Ice for drinks or a cooler — and the bags to buy
- 10% extra — one tick for surprise guests
- A shopping list to copy — and a table of the rules per guest
How the food is counted
For each guest at a 3-hour birthday party with pizza:
| Item | Each adult | Each kid |
|---|---|---|
| Pizza slices | 3 | 2 |
| Finger food pieces | 5 | 4 |
| Chips | 1.5 oz (43 g) | 1 oz (28 g) |
| Dip | 2 tbsp | 1 tbsp |
| Drinks | 4 | 4 |
| Ice | 1 lb (0.45 kg) | 1 lb (0.45 kg) |
| Plates | 2 | 2 |
| Cups | 2.5 | 2.5 |
| Napkins | 4 | 4 |
The rules behind it:
- Drinks: 2 in the first hour, then 1 for every hour after — so a 3-hour party is 4 drinks each
- Pizza: 3 slices per adult and 2 per kid, plus 10% for every hour past 3 hours. A large 14″ pizza has 8 slices
- Finger food: 4 pieces per adult and 3 per kid with pizza, plus 1 more each for every hour past 2. Without pizza: 10 and 7 pieces, plus 3 and 2 for every hour past 2
- Game day: all the food (pizza, finger food, chips) counted 25% higher
- Ice: 1 lb per guest for drinks, 2 lb if you also chill drinks in a cooler, and 25% more for a party over 4 hours. Bags of 10 lb
- Cups: 1 per guest, plus 1 for every 2 hours. Napkins: 3 per guest, plus 1 for every hour past 2. Plates: 2 per guest
Party food for 10 to 50 guests
A 3-hour birthday party for adults, with pizza:
| Guests | Large pizzas | Drinks | Finger food | Ice | Plates | Cups | Napkins |
|---|---|---|---|---|---|---|---|
| 10 | 4 | 40 | 50 | 10 lb | 20 | 25 | 40 |
| 20 | 8 | 80 | 100 | 20 lb | 40 | 50 | 80 |
| 30 | 12 | 120 | 150 | 30 lb | 60 | 75 | 120 |
| 50 | 19 | 200 | 250 | 50 lb | 100 | 125 | 200 |
Worked examples
The page opens on a 3-hour birthday party for 12 adults:
- Pizza: 12 × 3 = 36 slices ÷ 8 = 5 large pizzas
- Drinks: 12 × (3 + 1) = 48 drinks
- Finger food: 12 × 5 = 60 pieces
- Chips: 12 × 1.5 oz = 18 oz (2 bags of 10 oz), dip: 24 tbsp = 1½ cups
- Ice: 12 lb (2 bags), plates 24, cups 30, napkins 48
- Cake: 12 slices — one 9 × 13″ sheet cake
Game day, 20 adults, 4 hours: 11 large pizzas (83 slices), 100 drinks, 140 pieces of finger food, 2.4 lb of chips and 20 lb of ice.
New Year's Eve, 30 adults, 5 hours: 14 large pizzas, 180 drinks, 210 pieces of finger food, 38 lb of ice and 5 bottles of sparkling wine (or sparkling juice) for the midnight toast. New Year's Eve 2026 is on a Thursday.
Frequently asked questions
How many pizzas do I need for a party?
Plan 3 slices per adult and 2 per kid. A large 14-inch pizza has 8 slices, so 20 adults need 60 slices — 8 large pizzas. Order a little more for a long party or a hungry crowd.
How many drinks per person for a party?
The usual rule is 2 drinks in the first hour and 1 drink every hour after. For a 4-hour party, that is 5 drinks per person. Count water and soft drinks too.
How much ice do I need for a party?
About 1 lb (0.45 kg) of ice per guest for the drinks. If you also chill cans and bottles in a cooler or a tub, plan 2 lb per guest. On a hot day, buy more.
How many plates and cups do I need?
Plan 2 plates per guest and about 2–3 cups per guest for a 3-hour party — people put a cup down and take a new one. Napkins: 3–4 per guest, more with pizza and wings.
How much food for kids?
Kids under 12 eat about two thirds of an adult: 2 slices of pizza and fewer snacks. Teens eat like adults, so count them as adults.
Is this exact?
No. These are rules of thumb. Your guests, the time of day and the other food all change what people eat. A little extra is better than running out.
Related tools
- Pizza Dough Calculator — make the pizza dough yourself
- Invitation Maker — print or send the party invitation
- Recipe Scaler — make a recipe for more guests
- New Year Countdown — a big countdown to midnight for the party
- Printable Grocery List — turn the result into a shopping list
How to use it
- Pick the party: Birthday party, Game day, New Year's Eve, Holiday party or Get-together
- Type the Adults and teens, the Kids under 12 and the Party length in hours — or tap the Guests and Hours buttons
- Untick Pizza is the main food if you serve finger food instead
- Open More options if you chill the drinks in a cooler, or to Add 10% extra for surprise guests
- Read the shopping list in the result, and press Copy to take it with you
