Event capacity calculator for any space
Estimate how many people fit in a room based on size, layout, and usable space.
Subtract areas that guests cannot occupy.
These numbers are estimates, not official occupancy limits.
PaxCalc estimates capacity by dividing usable floor area by a layout-based space-per-person factor. Some reference factors are informed by commonly cited IBC occupant-load concepts, but results are planning estimates only — not official occupancy limits.
Frequently Asked Questions
Common questions about event capacity planning
Disclaimer: PaxCalc provides planning estimates only and is not a code-compliance tool. Official occupancy limits depend on local building/fire codes, exits, sprinklers, furniture layout, room shape, fixed seating, net vs. gross floor area, and approval by local authorities. Always verify capacity with the venue, fire marshal, building official, or other relevant authority before your event.