The short answer
Our planning model starts with one bartender per 50 guests for cocktails or mixed alcohol-free drinks, and one per 75 guests for beer and wine, rounding up. These are planning assumptions, not a universal service guarantee. Your provider should review the menu and timing.
Why the menu matters
Opening a bottle and building a multi-step cocktail take different amounts of preparation. A short menu and agreed preparation plan can make service more predictable. Alcohol-free mixed drinks may need just as much hands-on work as cocktails.
Why the room matters
Two separate bar locations may need two bartenders even with a smaller guest list. A crowd arriving at once after a ceremony creates different demand from guests arriving gradually. Discuss table service, clearing and restocking separately.
When to discuss a barback
A barback can support ice, supplies, glassware and clearing, leaving bartenders focused on service. It is an extra role, not automatically included in the calculator. Ask your provider to itemize it and confirm the working space.
Turn the guide into a plan.
Try the calculator, then send your event details for an availability review.
Open the cost planner