Calculators
How Much Alcohol for 100 Guests?
One hundred guests is the query shape planners search most. This page walks through a four-hour reception with a full bar: drinking guests get two drinks the first hour and one each hour after, then the list rounds up to cases and bottles.
Use the controls below for your headcount, bar style, and pour sizes. Non-drinking guests are excluded from the bar math but still count for ice and cups.
Estimates only. Print at 100% with scaling off.
100 guests · 4 hours · Full bar · 75 drinking · 25 not drinking
| Category | Needed | Buy |
|---|---|---|
| Beer | 150 drinks | 7 cases |
| Wine | 112.5 drinks | 23 × 750 ml |
| Spirits | 112.5 drinks | 8 × 750 ml |
Assumptions
- Drinking share: 75% of headcount (75 drinking guests)
- Duration: 4 hours → 5 drinks per drinking guest
- Bar split: 40% beer, 30% wine, 30% spirits
- Pour sizes: 5 oz wine, 1.5 oz spirits, 4 oz sparkling
- Ice: 1.5 lb per guest (60% chilling, 40% serving)
- Mixers: 2 L per 750 ml spirits bottle
Supplies checklist
- Ice — 8 bags (20 lb each)
- Cups — 200 (2 per guest)
- Napkins — 300 (3 per guest)
- Mixers — 16 L
- Garnish (citrus, olives, cherries)
- Serving utensils and bar tools
- Coolers and ice tubs
Estimates only. Adjust the per-guest rates for your crowd.
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