?WaitingUnknown
Start with how many guests you are expecting.
What this assumes
- This is a planning guide, not a safety check. The most people a room may legally hold is set by the local fire authority, not by this arithmetic — ask the venue for its approved (posted) occupant load.
Keep this room
Add a length and a width and this room can be kept and reused. A capacity figure on its own is an answer about one evening, not a room.