The Details

Party drink calculator

How much beer, wine and liquor to buy for a party: enter the guests and the hours, pick the bar, and get bottles and cases, plus ice, mixers and soft drinks. Free, with no sign-up.

From cocktail hour to last call.

%

24 guests

Share of drinks
%
%
%

The usual split for beer and wine. Change it to suit your crowd.

%

The rest is white or rosé.

Units

What to buy

About 120 drinks for 24 guests who drink over 4 hours.

Wine
15 bottles
8 red, 7 white · 72 glasses
Beer
2 cases
48 beers in cases of 24
Spirits
0 bottles
None on this bar
Champagne toast
0 bottles
No toast

And the rest

  • Ice: about 30 lb for drinks (1 lb a guest). Double it if you chill bottles in tubs or it’s a hot day.
  • Water: about 30 liters, a glass a guest each hour. Keep it on every table and at the bar.
  • Soft drinks: about 30 for the guests who don’t drink alcohol, plus sparkling juice for the toast if there’s one.
Add prices for a total cost
The assumptions

Rules of thumb, not a promise: change any of them to match your crowd and your pours.

Per guest who drinks

Per guest who drinks

750 ml, 5 oz pours

750 ml, 1.5 oz pours

12 oz bottles or cans

750 ml, a short pour each

oz
lb

Know how many are coming

Make a free party page with the date, the place and a reply button, and buy drinks for the people who said yes. Guests reply from one link, no account needed. Free to make and publish.

Hosting a wedding? The wedding alcohol calculator starts with a full bar and a champagne toast. Sorting the food too? Make a potluck sign-up sheet.

Questions

How many drinks per person at a party?

About two in the first hour and one each hour after for guests who drink: five drinks each over a four-hour party. Count the guests who don’t drink alcohol separately and get them soft drinks at the same pace.

How much beer and wine for 30 people?

For a four-hour party where 24 of the 30 drink, about 120 drinks. With beer and wine only, split 40/60, that is 48 beers (2 cases of 24) and 15 bottles of wine. Add a bottle or two for safety; unopened bottles keep.

How much liquor for a party?

A 750 ml bottle of spirits gives about sixteen 1.5 oz drinks. If a fifth of the drinks are mixed drinks at a 30-person party, that is about 24 pours: two bottles, with around 2.8 liters of mixers. Pick Full bar above to see it for your numbers.

How much ice do I need for a party?

About a pound (half a kilo) per guest for drinks, and twice that if you are chilling cans and bottles in a cooler or tub. Buy it last, on the day.

Is it free? Do I need an account?

It’s free and needs no account; the numbers stay in your browser. Change any of the rules of thumb under the assumptions, and add prices to see the total cost.