100 guests · evening party · 5 hours · standing service · mixed bar. Computed with the engine professional crews use, not a rule of thumb.
Party
What a 100-guest party bar needs
≈ 1638 bar serves for 100 guests over 5 hours on a mixed bar. Water covers bar and table, still and sparkling.
Wine (all types)18 bottles
Sparkling (toast)17 bottles
Beer150 units
Non-alcoholic beer1 case
Spirits (all bottles)45 bottles
Soft drinks & mixers27 cases
Water450 bottles
Team on shift6 people
Ice240 kg · 120 bags
Free numbers from the same engine the full planner runs. Pro turns them into the exact order per product, cocktail ingredients, glassware and one shopping list.
Team
The crew behind 100 guests
6 team members
Bartenders2
Barbacks1
Runners2
Glass cleaners1
Range: 6 (minimum and recommended) · 7 (comfortable).
Ice
Ice for 100 guests
240 kg of ice
Cube ice (drinks & chilling)180 kg90 bags
Crushed ice (cocktails)60 kg30 bags
Total to order120 bags24 sacks of 10 kg
Recommended storage1 large freezer
When they actually drink it
Those 1638 serves do not arrive evenly: the opening hour is the fastest, about 378 serves, because every guest wants a first drink at once; over hours 2–5 the bar settles into a steady 315 serves an hour. The totals above already carry this curve, so the bar is stocked for the surge, not for the average.
Field note: a second bar is not half a team twice
Splitting one crew across two stations leaves both short. When Green Jar runs two simultaneous bars the floor is 3 bartenders, 2 barbacks, 3 runners and 1 glass cleaner, whatever the per-guest table says. Large events already above those numbers see no change.
Adjust it to your event
Same engine, live. Change the crowd, the bar or the hours and recalculate.
Guests
Seated dinner served?
Bar service
Duration
Party
Frequently asked questions
How much alcohol do I need for 100 guests at a party?
Plan for about 1638 bar serves over 5 hours. On a mixed bar that becomes roughly 18 bottles of wine, 150 units of beer, 45 bottles of spirits and 27 cases of soft drinks and mixers, plus 450 bottles of water.
How much wine do I need for 100 guests standing?
The standing rule is 1 glass per guest, split across white, rosé and red, and a 750 ml bottle pours 6 glasses. Scaled to 5 hours that is 18 bottles for 100 guests.
How many bar staff do I need for 100 guests?
2 bartenders at the recommended level and 6 people in total, counting barbacks, runners and glass collectors. The comfortable level for the same event is 7.
Plan your full bar: bottles, cocktails, shopping list.
The free calculator gives staff, ice and totals. Pro turns them into the exact order per product and one Excel your supplier can read.