300 guests · evening corporate event · 4 hours · standing service · mixed bar. Computed with the engine professional crews use, not a rule of thumb.
Corporate
What a 300-guest corporate event bar needs
≈ 3144 bar serves for 300 guests over 4 hours on a mixed bar. Water covers bar and table, still and sparkling.
Wine (all types)50 bottles
Sparkling (toast)50 bottles
Beer450 units
Non-alcoholic beer3 cases
Spirits (all bottles)81 bottles
Soft drinks & mixers50 cases
Water1350 bottles
Team on shift16 people
Ice500 kg · 250 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.
Those 3144 serves do not arrive evenly: the opening hour is the fastest, about 898 serves, because every guest wants a first drink at once; over hours 2–3 the bar settles into a steady 749 serves an hour; through hour 4 the pace eases to around 748 an hour as the crowd winds down. The totals above already carry this curve, so the bar is stocked for the surge, not for the average.
Field note: ice runs on the clock, not the guest list
A rule from the Green Jar crews: a 3-hour event still needs 60% of the ice a 6-hour one does, because chilling bottles costs the same however short the night is. Stretch the same party to 12 hours and the order grows to 190% of the base, almost double. That is why the duration of your event moves the ice number more than the guest count does.
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
Corporate
Frequently asked questions
How much alcohol do I need for 300 guests at a corporate event?
Plan for about 3144 bar serves over 4 hours. On a mixed bar that becomes roughly 50 bottles of wine, 450 units of beer, 81 bottles of spirits and 50 cases of soft drinks and mixers, plus 1350 bottles of water.
How much wine do I need for 300 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 4 hours that is 50 bottles for 300 guests.
How many bar staff do I need for 300 guests?
5 bartenders at the recommended level and 16 people in total, counting barbacks, runners and glass collectors. The comfortable level for the same event is 18.
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.