You’ve booked the venue, settled on the menu and worked out roughly how much everyone is going to drink. Then comes a question that often gets left until surprisingly late:
How many waiters and bartenders do we actually need?
There isn’t one staffing ratio that works for every event. A 100-person cocktail party needs a very different team from a 100-person wedding with plated food, wine service and a full bar.
But there are some useful starting points.
Event staffing ratios at a glance
As a general guide:
| Service style | Suggested staffing ratio |
| Cocktail / canapé event | 1 waiter per 25–30 guests |
| Buffet | 1 waiter per 20–25 guests |
| Plated meal | 1 waiter per 10–15 guests |
| Formal / premium dining | 1 waiter per 8–12 guests |
| Standard bar | 1 bartender per 40–50 guests |
| Cocktail-heavy bar | 1 bartender per 25–35 guests |
These aren’t hard-and-fast rules. Think of them as a starting point before considering the venue, menu and style of service.
How many waiters do you need?
For a relaxed cocktail event where guests largely help themselves, and staff circulate with drinks or canapés, one waiter per 25–30 guests may be enough.
Once food service becomes more involved, that ratio changes.
A buffet may require approximately one waiter per 20–25 guests, particularly if staff are clearing tables, refreshing the buffet and handling drinks.
For a plated dinner, one waiter per 10–15 guests is a better starting point. More formal events may require an even higher level of staffing.
Why the difference?
Imagine 120 guests all finishing their starters at approximately the same time. With four waiters, clearing the room could take a while. With eight or ten experienced staff, the transition to the next course becomes much smoother.
Note that there is plenty of work that service staff have to do behind the scenes. For example, when sitting at a plated dinner, we suggest dedicating one waiter per table.
Good staffing is often something guests don’t consciously notice. Poor staffing is noticed very quickly.
How many bartenders do you need?
For a relatively straightforward drinks service – beer, wine, soft drinks and a handful of simple mixed drinks – one bartender for approximately 40–50 guests can work well.
Cocktails change the equation.
A gin and tonic takes seconds. Six espresso martinis do not.
If cocktails are an important part of the event, consider one bartender for every 25–35 guests, depending on the complexity of the drinks menu.
For a 150-person event, for example, three bartenders may comfortably handle a simple bar. If most guests are ordering freshly made cocktails, four or five may be more appropriate.
The aim isn’t to have bartenders standing around. It’s to avoid 20 people waiting at the bar when everyone decides they want a drink at once.
Guest numbers aren’t the whole story
Two events with 200 guests can require completely different staffing teams.
Before deciding on numbers, consider:
Service style. Plated dining requires more staff than a casual buffet.
Drinks menu. Cocktails require considerably more bartender time than beer and wine.
Venue layout. A large venue, multiple floors or separate bar areas can increase staffing requirements.
Event schedule. Weddings often have intense service periods around arrival drinks, dinner, speeches and dancing.
Guest expectations. A premium corporate dinner generally requires a higher level of service than a casual daytime function.
Don’t forget the people behind the scenes
Waiters and bartenders aren’t necessarily the entire staffing requirement.
Depending on the event, you may also need a bar supervisor, floor manager, runners, setup staff or people responsible for clearing glassware and replenishing stock.
For larger events, having someone coordinating the service team can make a significant difference. Without that role, even a well-staffed event can become disorganised.
So, how many staff should you book?
Start with your guest count, but don’t stop there.
Tell your staffing supplier what kind of event you’re planning, how food will be served, what the bar menu looks like, how long the event runs and what level of service you’re aiming for.
An experienced event staffing team should then be able to recommend a realistic headcount rather than simply applying a standard ratio.
At Urbantonic, event staffing can be planned alongside the other practical elements of an event, helping ensure that the people delivering the experience are considered just as carefully as the furniture, food and bar.
Quick FAQs
How many waiters do I need for 100 guests?
Around four to five may be sufficient for a buffet or cocktail-style event, while a plated dinner could require seven to ten depending on the service level. A wedding with 100 guests may require 10 waiters, with approximately one waiter per table, as well as up to three wine stewards for drinks service.
How many bartenders do I need for 100 guests?
Two bartenders may handle a simple beer, wine and spirits bar. For a cocktail-focused event, three to four is generally a safer starting point.
Is it better to have too many staff?
Not necessarily. Overstaffing increases cost without improving the experience. The goal is to match the team to the actual service requirement.
Please contact us if you’d like a quote for your event.