Banquet Room Capacity and Revenue Calculator
Estimate how many guests your banquet room can accommodate based on layout style and square footage, then project potential event revenue.
Formulas Used
Total Area: Length (ft) × Width (ft)
Usable Area: Total Area × (1 − Unusable% / 100)
Maximum Capacity: floor( Usable Area ÷ Sq Ft per Person )
Average Guests: round( Max Capacity × Occupancy Rate% )
Revenue per Event: (Avg Guests × Per-Person Price) + Flat Room Fee
Monthly Revenue: Revenue per Event × Events per Month
Annual Revenue: Monthly Revenue × 12
Annual Revenue per Sq Ft: Annual Revenue ÷ Total Area
Assumptions & References
- Space-per-person standards are based on guidelines from the International Association of Venue Managers (IAVM) and the National Fire Protection Association (NFPA 101 Life Safety Code).
- Banquet/Rounds: 10 sq ft/person — standard for seated dinner with round tables.
- Cocktail/Reception: 6 sq ft/person — standing reception with minimal furniture.
- Conference/Boardroom: 15 sq ft/person — perimeter seating around a central table.
- Theater/Auditorium: 18 sq ft/person — rows of chairs, no tables.
- Classroom Rows: 20 sq ft/person — rows of tables with chairs on one side.
- U-Shape/Hollow Square: 25 sq ft/person — open center configuration.
- Unusable space (stage, bar, dance floor, AV equipment, service corridors) typically ranges from 15%–30% of total area.
- Occupancy rate reflects the percentage of maximum capacity typically filled per event; industry average is 65%–80%.
- Revenue projections assume consistent pricing and do not account for food & beverage costs, staffing, or overhead.
- Local fire codes and ADA accessibility requirements may impose additional capacity restrictions — always verify with local authorities.