Backyard barbecue, summer party, club festival or a milestone birthday: the quantities are usually estimated in a few minutes. The work lies elsewhere – in cases and ice, three different stores, and five helpers who cannot see each other.
First the rules of thumb, then how to turn them into packs you can actually buy – and last the organizing that party calculators leave out.
Drinks are counted per guest and per hour – a five-hour party needs far more than one that lasts two.
2 in the first hour, 1 per hour after that
about half on a hot day outdoors
depends on the occasion and the time of day
per guest · more outdoors in the heat
24 × 330 ml
30 or 50 l in Europe · US half barrel ≈ 58.7 l
24 × 500 ml
6 × 2 l
12 × 330 ml
one 750 ml bottle ≈ 5 glasses
German festival rules of thumb plan noticeably more – about half a liter per guest and hour, across all drinks – mainly because of long, hot afternoons outdoors. On a day like that, plan toward it, and be generous with water: it is the one thing that is certain to be drunk and keeps without trouble.
per adult, raw weight
when the meat is the main event
per adult
when there is meat as well
potato or pasta salad, ready to serve
about a third of a baguette, or 1–2 buns
A mix works better than one kind of meat – roughly half your main meat, a quarter poultry, a quarter sausages or burgers – plus halloumi or vegetable skewers for anyone who does not eat meat.
80 guests, 5 hours, 40 percent beer. From the rules of thumb above – the method, not a list to copy:
| Item | Calculation | Result |
|---|---|---|
| Drinks, all kinds80 × (2 + 4 × 1) | 80 × (2 + 4 × 1) | 480 drinks≈ 145 l at 300 ml – on a hot afternoon outdoors, plan toward 200 l |
| of which water (40 %)480 × 0.4 | 480 × 0.4 | 192 drinks≈ 58 l = 5 cases of 24 × 500 ml |
| of which beer (40 %)480 × 0.4 | 480 × 0.4 | 192 drinks= 8 cases of 24 × 330 ml |
| other soft drinks (20 %)480 × 0.2 | 480 × 0.2 | 96 drinks≈ 29 l, e.g. 15 bottles of 2 l |
| Ice80 × 0.5–1 kg | 80 × 0.5–1 kg | 40–80 kg |
| Grilled meat80 × 275 g | 80 × 275 g | 22 kgraw weight · a mix of meat, poultry and sausages |
| Filling salad80 × 175 g | 80 × 175 g | 14 kg |
| Bread80 × 125 g | 80 × 125 g | 10 kg |
Checked against: Summer & Cinnamon – how many drinks per person · Reddy Ice – how much ice you need for a party · Strack & Van Til – meat per person for a cookout. The rest – sides, salad, bread, the alcohol share – are German party rules of thumb and our own experience. The occasion, the time of day and the weather matter more than any formula: take the numbers as a starting point, not a result.
The numbers are on a sheet of paper, and five people are in the store. Four things make the difference then:
A party is rarely bought in one store: liquor store, butcher, supermarket, bakery. Name the categories that way, and everyone takes one store and nobody walks the same aisles twice.
Full drinks are one thing, cold drinks another. Put ice on the list as its own item – plus coolers and, where bottles carry a deposit, the empties. That saves the usual two extra trips on the day.
If guests bring salads, that goes in the same list – as its own category, with the name in the note. Otherwise you end up with four pasta salads and no bread.
Right before the party a lot of people open the list. Anyone with the link can tick things off, and with a PIN only the people who know it can change it – so nobody overwrites the planning by accident.
If you are cooking for the party as well, let an AI merge several recipes into one list; for catering over several days there are quantities for groups.