Event space calculator

How it works

We multiply your guest count by an area per person for the layout, then add the extras. The low end is the industry minimum; the high end is a comfortable room. Both are rules of thumb from the event-industry guides listed under Sources, not a legal capacity.

• Per guest: theatre 0.75–1.0 m², classroom 1.4–1.7 m², rounds of 8 1.2–1.5 m², rounds of 10 1.15–1.4 m², cabaret 1.4–1.7 m², standing cocktail 0.5–0.75 m², U-shape 2.3–2.8 m², boardroom 2.2–2.8 m².
• Dance floor: 0.3–0.45 m² for each guest dancing at the same time. Usually only part of the room dances at once; set the share with the slider.
• Extras: a bar takes about 9–14 m² with its queue, a buffet table 5.6–10 m² with clearance, a DJ table about 5 m², and a stage its own size plus up to 25 % for steps and clearance.
• The sketch sets out one possible arrangement at scale in a plain rectangular room. It grows the room only if the seats don't fit.

Columns, doors, fire exits and the venue's approved maximum occupancy always win over these numbers. Ask the venue for its certified capacity in your layout.