How much food for 20 people
For 20 people at a buffet, plan about 39.25 lb of finished food: 16.5 lb of mains, 8.75 lb of sides and 29 dessert servings. Pour about 100 drinks over 4 hours and buy 40 lb of ice.
Food amounts for 20 people by kind of party
Appetizers
4.25 lb
About 93 bites
Mains
11.25 lb
1 dish
Sides
7 lb
2 dishes
Bread & rolls
3 lb
About 22 rolls
Dessert
5 lb
About 22 servings
Cooked, ready-to-serve weights. Planning estimates with a small margin built in.
Appetizers
4.75 lb
About 106 bites
Mains
16.5 lb
2 dishes
Sides
8.75 lb
3 dishes
Bread & rolls
3.5 lb
About 25 rolls
Dessert
6.25 lb
About 29 servings, 2 kinds
Cooked, ready-to-serve weights. Planning estimates with a small margin built in.
Appetizers
8 lb
About 178 bites, 6 kinds
Dessert
3 lb
About 13 servings
- · A cocktail party that runs past dinner time becomes dinner. Guests eat as though it is one.
Cooked, ready-to-serve weights. Planning estimates with a small margin built in.
Mains
10.75 lb
1 dish
Sides
6.75 lb
2 dishes
Bread & rolls
2.75 lb
About 21 rolls
Dessert
4.75 lb
About 21 servings
Cooked, ready-to-serve weights. Planning estimates with a small margin built in.
Appetizers
5.5 lb
About 120 bites
Mains
18.5 lb
2 dishes
Sides
10 lb
3 dishes
Bread & rolls
3.75 lb
About 29 rolls
Dessert
6.25 lb
About 29 servings
- · 4 hours of service — quantities carry 7% for the long tail.
Cooked, ready-to-serve weights. Planning estimates with a small margin built in.
Drinks
100 drinks for 20 people
Mixed bar, 4 hours, 80% of guests drinking alcohol — about 5 drinks a guest.
- Bottles of wine
- 7
- Beers
- 26
- Bottles of spirits
- 1
- Quarts zero-proof
- 8.2
- Quarts of water
- 21.1
- Glasses
- 53
Ice
0 lb
Indoors, bottles kept cold in tubs. On a hot day outside: 55 lb.
- 5 lb bags8
- 10 lb bags4
- 20 lb bags2
What changes at 20
The numbers, compared
- A buffet for 20 needs 39.25 lb of food against 29.75 lb for a plated dinner — people serve themselves and try more dishes.
- Cooked mains: 11.25 lb at a sit-down dinner, 16.5 lb at a buffet with 2 mains, 18.5 lb at a cookout. Buy roughly a third more raw weight for meat.
- Appetizers only: about 178 bites across a 3-hour cocktail party, or 9 a guest.
- On a hot day outdoors the ice rises from 40 lb to 55 lb, because bottles in a tub melt it too.
- Checked against a starting kitchen of 1 oven and 4 burners, the sample menu for 20 is over capacity; the busiest part is serving stations at 143%.
A sample plan
Buffet for 20, planned by the engine
A representative menu from our recipe library, sized for 20 with a shopping list and a kitchen check. Yours will change the moment you tell the planner about your guests and your kitchen.
Menu for 20
To start
- Warm citrus-fennel olives3 batches · 24 servingson the day
Mains
- Chickpea & squash tagine4 batches · 24 servingsday before
Sides
- Cold green salad, sharp dressing2 batches · 16 servingson the day
- Potato gratin2 batches · 16 servingson the day
Bread
- Rosemary focaccia, torn2.5 batches · 25 servingson the day
Dessert
- Gulab jamun2 batches · 24 servingson the day
About 814 g of food a guest. 20% of the cooking can be done before the day.
Shopping highlights
- Citrus for garnish5 ea
- Garlic12 clove
- Herb for garnish — mint or rosemary2 bunch
- Lemon4 ea
- Onion10 ea
- Orange4 ea
- Potato8 lb
- Rosemary1 bunch
- Salad leaves2 lb
- Squash13 lb
10 of 33 lines. The full list comes with the plan.
Kitchen check
Over capacity
Checked against a starting kitchen of 1 oven and 4 burners — not yours yet. Seats are not counted here: the planner asks for your real number rather than guessing it.
Drinks and cost
- Drinks, all kinds
- 100
- Ice
- 40 lb
- Food, estimated
- $504
About $25 a guest — a planning estimate from typical supermarket costs, not a price.
Scale it
More or fewer people?
Different party?
Set your own numbers
Food for 20: questions hosts ask
How much food do I need for 20 people?
About 29.75 lb of finished food for a sit-down dinner for 20, or 39.25 lb as a buffet, which is roughly 23.7–31.3 oz a person. These are planning estimates for cooked food, with a small margin for a late guest.
How much meat for 20 people?
Plan about 11.25 lb of cooked main dish for a plated dinner for 20, or 16.5 lb for a buffet that puts out 2 mains. Meat loses about a quarter of its weight as it cooks, so buy around 15 lb raw for the dinner.
How many appetizers for 20 people?
When appetizers are the whole party, about 178 bites for 20 guests over 3 hours. Before a dinner, 93 bites is enough to take the edge off.
How many drinks for 20 people?
About 100 drinks over 4 hours with a mixed bar and most guests drinking: 7 bottles of wine, 26 beers, 1 bottle of spirits, and zero-proof drinks for everyone who isn't drinking alcohol.
How much ice for 20 people?
40 lb of ice indoors with bottles kept in tubs, or 55 lb outdoors on a hot day. That is 2 20 lb bags for an indoor party.
How many rolls for 20 people?
About 22 rolls for a sit-down dinner for 20 — close to one each, since bread is a side people take once.
Planning for 20? Get the whole plan
A menu that fits your oven, a full shopping list and a countdown timeline — sized to your real guest list. Free, no sign-up.
Plan my party for 20