Party supplies calculator: plates, cups and napkins

Enter your guest count and what you are serving to see how many plates, cups, napkins and forks to buy, rounded up to whole packs.

Enter your measurements

Everyone eating, including the hosts
Guests put a cup down and take a new one. 2 for a short party, 3–4 for an afternoon outdoors
More options: Extra · Pack · Napkin pack
%
Paper goods keep, so rounding up costs little
Check the package — bulk packs of 50, 100 and 150+ are common
Plates in total138 plates
Dinner plates (large)
83 plates
Small plates (appetizers & dessert)
55 plates
Cups
165 cups
Napkins
165 napkins
Forks
110 forks
Knives
55 knives
Large trash bags (one per 10 guests, plus recycling)
5 bags
Packs of dinner plates
2 packs
Packs of small plates
2 packs
Packs of napkins
2 packs
Per guest
1.5 large + 1 small plates, 3 cups, 3 napkins
How we got this

Dinner plates: 50 guests × 1.5 × 1.1 extra = 83 plates

Small plates: 50 × 1 × 1.1 extra = 55 plates

Cups: 50 × 3 × 1.1 extra = 165 cups · Napkins: 50 × 3 × 1.1 extra = 165 napkins

Napkins ÷ 100 per pack = 2 packs

  • Buffet plates take a scoop of everything, so pick heavy-duty plates (or plates with a rim) that do not fold. Small plates are fine for dessert and appetizers.

For this job · affiliate link
Heavy-duty paper plates (bulk)A buffet plate carries a scoop of everything. Heavy-duty plates do not fold halfway to the table.
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Next: tables and chairs for the same guest list.

Quick answers for common sizes

Worked examples for the Party Supplies Calculator
ExampleAnswer
How many plates for 50 people83 dinner + 55 small plates
How many napkins for 100 guests440 napkins

Supplies by guest count (menu and extra as above)

Supplies by guest count (menu and extra as above)
GuestsDinner plates (large)Small plates (appetizers & dessert)CupsNapkins
2542 plates28 plates83 cups83 napkins
5083 plates55 plates165 cups165 napkins
75124 plates83 plates248 cups248 napkins
100165 plates110 plates330 cups330 napkins
150248 plates165 plates495 cups495 napkins
200330 plates220 plates660 cups660 napkins

Paper goods are the easiest part of a party to get right, because leftovers keep. The mistake is running out of something cheap at the busiest moment — usually cups or napkins. This calculator counts per guest by menu, adds an allowance, then rounds up to whole packs. New to the words? Party terms explained.

How the count works

Each item is guests × a per-guest figure for your menu, plus the extra allowance, rounded up. Dinner plates assume half the guests go back for seconds with a fresh plate; small plates cover appetizers (two each) and dessert (one each). Cups are your own number, because how many people lose track of a cup depends on the party: a two-hour office lunch might need two each, an afternoon barbecue in the sun four.

item = guests × per-guest figure × (1 + extra), rounded up
packs = item ÷ pieces per pack, rounded up
Per-guest starting figures this calculator uses. They are planning defaults, not a published standard — change the cups, napkins and extra inputs to suit your crowd.
MenuDinner platesSmall platesForksNapkins
Snacks and cake, no meal0212
One meal (buffet or plated), no dessert1.501.53
Meal and dessert1.5123
Appetizers, meal and dessert1.5324

Worked examples

Tips that save a second trip to the store

  • Buy plates by job, not by count alone. Thin plates are fine for cake; a buffet plate with brisket and beans needs a heavy-duty or rimmed plate.
  • Cups run out first. Put a marker by the stack, or use cups guests can write on. Count your drinks too — the party drinks calculator works out cans and bottles for the same guest list.
  • Napkins go double at a barbecue. Wings, ribs and a crawfish boil are napkin-heavy; add paper towels and wipes.
  • Forks before knives. Most buffet food can be eaten with a fork; knives matter for ham, brisket and steak.
  • Trash is a supply too. Plan about one large bag per ten guests plus a separate one for cans, and empty them before they overflow.

If you are renting real plates and glassware instead, rental companies usually supply by the dozen or rack; count the same way and ask about breakage fees.

What you’ll need

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Frequently asked questions

How many cups per person should I plan for a party?

Plan two or three per guest for an indoor party of a few hours, and three or four for an outdoor afternoon where cups get set down and forgotten. Cups are cheap, so round up.

Do I need dessert plates as well as dinner plates?

Yes, if there is cake or pie: one small plate per guest. Guests rarely reuse a dinner plate for dessert at a buffet, and a large plate under a slice of cake wastes money.

How many napkins per guest?

About two each for snacks, three for a meal and four when there are appetizers, a meal and dessert. Barbecue, wings and seafood boils use roughly half as many again.

How many forks do I need for a buffet?

About one and a half per guest for a meal, or two if dessert is served, because people take a fresh fork with their second plate and with cake.

How many trash bags for a party?

Plan roughly one large (30–33 gallon) bag per ten guests, plus separate bags or bins for cans and bottles. Empty them during the party rather than at the end.