Guide · Staffing
How many bartenders per guest at a banquet?
Written by a hotel banquet operations manager ·
Hotelwright starts every hotel at 1 bartender per 100 guests and at least 1 bartender per bar, going to 1 per 50 guests during a cocktail hour. These are starting points for hotel banquets, not rules: every hotel adjusts them for its menu, its bars and its house standard.
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The short answer
| Situation | Starting point |
|---|---|
| Bartenders for a bar service | 1 per 100 guests |
| Every bar | At least 1 bartender |
| Cocktail hour | 1 per 50 guests |
| Barback | 1 from 101 guests, 2 from 251 (events with a bar) |
Other sources publish different numbers, and the right one depends on your menu, your bars and your house standard. Treat the table as a starting point. Your house standard wins. For the same ratios on one printable page, see the staffing ratio sheet.
How to work it out
Take the larger of two numbers:
- The guest count divided by the ratio, rounded up (guests ÷ 100, or guests ÷ 50 for a cocktail hour).
- The number of bars, with at least 1 bartender on each.
| Event | Guests ÷ ratio | Bars | Bartenders |
|---|---|---|---|
| 100 guests, 1 bar | 100 ÷ 100 = 1 | 1 | 1 |
| 101 guests, 1 bar | 101 ÷ 100 = 1.01, rounded up to 2 | 1 | 2 |
| 150 guests, 1 bar | 150 ÷ 100 = 1.5, rounded up to 2 | 1 | 2 |
| 150 guests, 3 bars | 150 ÷ 100 = 1.5, rounded up to 2 | 3 | 3 (the bars decide) |
| 150-guest cocktail hour, 1 bar | 150 ÷ 50 = 3 | 1 | 3 |
| 400 guests, 2 bars | 400 ÷ 100 = 4 | 2 | 4 |
Rounding up matters: half a bartender can't work a bar. Use the guarantee once it is in, and the expected count until then. See the guaranteed guest count.
Why the bar count matters as much as the guests
A bar with nobody behind it is a closed bar. Three small bars for 150 guests need three bartenders even though the guest ratio says two. When a BEO says "3 bars", count the bars first and the guests second.
When to add a bartender
The ratio can't see everything. Add a bartender, or a barback, when the event has something the ratio doesn't:
- Specialty or made-to-order cocktails, which take longer per drink
- A rush at the doors, such as guests arriving all at once before a seated dinner
- A bar far from the back bar, so supplies take time to reach it
- Wine poured from the bar for the whole room
Follow your local alcohol service rules for ID checks, pours and licenses. This page is about how many people to schedule, not those rules.
Hosted, cash and consumption bars
These are on the BEO because they change how the bar is settled, not how many people work it:
- Hosted bar: the host pays for the drinks, and guests do not pay at the bar.
- Cash bar: guests pay for their own drinks.
- Consumption bar: the bar tab is settled on what was poured or sold.
The bartender count follows the guest count and the number of bars either way.
Weddings
The arithmetic is the same. A 150-person wedding with one bar starts at 2 bartenders (150 ÷ 100, rounded up), and at 3 if the cocktail hour is staffed at 1 per 50. With three bars, 3 bartenders. Add for the factors above.
In Hotelwright
On the Team plan, bartenders come from the same ratios as the rest of the crew, using the event's bar count and the guest count that drives staffing (the guarantee, by default). An event with no bar gets no bartenders. The ratios are settings you edit. An event marked as having a cocktail hour uses the cocktail-hour ratio. See staffing that works from your own ratios and how many servers per guest for the rest of the room.
FAQ
What banquet managers ask.
How many bartenders do I need for 100 guests?
One bartender per bar, so 1 for one bar. A starting point is 1 bartender per 100 guests and at least 1 per bar. At 101 guests the arithmetic rounds up to 2.
How many bartenders per bar?
At least 1. Add more when a bar will be busy: made-to-order cocktails, a rush at the doors, or wine poured from the bar.
Do I need more bartenders for a cocktail hour?
Yes. A starting point is 1 bartender per 50 guests during a cocktail hour, double the standard ratio above, because guests all arrive for their drinks at about the same time.
How many bartenders for a 150-person wedding?
With one bar, 2 (150 ÷ 100, rounded up). With three bars, 3. For a staffed cocktail hour at 1 per 50, 3.
Do I need a barback?
It depends on the event. Hotelwright's starting point adds 1 barback from 101 guests and 2 from 251, on events with a bar. Your house standard decides.
Are these numbers a rule?
No. They are starting points that Hotelwright begins every hotel with. They are Hotelwright's starting points, not a standard from any union, brand or regulator.