Key takeaways
- Plan about one drink per guest per hour — guests × hours = total drinks.
- Split the total by preference, then convert: 5 glasses per wine bottle, 24 beers per case, ~16 shots per liquor bottle.
- Add 1–1.5 lb of ice per guest (more when it's hot).
- 50 guests × 4 hours ≈ 200 drinks → 16 wine, 80 beers, 3 liquor bottles, 75 lb ice.
How to calculate drinks for a party
Stocking a bar is two steps: estimate the total number of drinks, then split that across what people will actually drink and convert to bottles and cases. The standard host's rule is one drink per guest per hour, which holds up well across most events.
The mix is just how your crowd leans — a wine-and-beer crowd, a cocktail crowd, or an even split. Set it to match the bar you'll actually offer.
Worked example: 50 guests, 4 hours
Total = 50 × 4 = 200 drinks. At a 40/40/20 split that's 80 wine, 80 beer, 40 liquor. Converting: 80 ÷ 5 = 16 bottles of wine, 80 beers ≈ 3.3 cases, 40 ÷ 16 ≈ 3 bottles of liquor, plus 50 × 1.5 = 75 lb of ice.
Servings per container
| Container | Serves |
|---|---|
| Wine — 750 ml bottle | ≈ 5 glasses (5 oz) |
| Liquor — 750 ml bottle | ≈ 16 shots (1.5 oz) |
| Beer — case | 24 cans/bottles |
| Keg — half barrel | ≈ 165 (12 oz) pours |
Buy a little extra — and plan the rest
Round up and add ~10% so you don't run dry; unopened bottles usually keep. For a wine-heavy bar, double-check with the wine for a party calculator, and don't forget coolers — size the ice for a party separately if you're chilling cans and bottles too.
Frequently asked questions
How much alcohol do I need for a party?
About 1 drink per guest per hour. 50 guests × 4 hours = 200 drinks; split by preference and convert to bottles/cases.
How many drinks per guest per hour?
Plan one per guest per hour (a bit more the first hour). Adjust up for a heavy crowd, down for daytime/family events.
How many bottles of wine for a party?
5 glasses per 750 ml bottle. Wine share of total ÷ 5 — 80 wine drinks = 16 bottles.
How much liquor for a party?
~16 shots per 750 ml bottle. Liquor share ÷ 16 — 40 cocktails ≈ 3 bottles, plus mixers.
How much ice do I need?
About 1–1.5 lb per guest; 50 guests ≈ 75 lb. Add more for hot weather or blended drinks.
Open bar or limited bar?
A limited bar (beer, wine, one signature cocktail) is cheaper and easier to estimate — set the mix to match.
Serving sizes follow U.S. standard-drink definitions (5 oz wine, 1.5 oz spirits, 12 oz beer) — see the NIAAA standard-drink guide. Per-guest-per-hour and bottle-yield figures are standard hosting estimates.
Last reviewed June 2026