A necessary note. This tool estimates an occupant load using the general square-foot-per-person factors in IBC Table 1004.5. It is a planning aid, not an official occupant load determination, and it is not a substitute for a code review by a licensed design professional or your authority having jurisdiction. The factors shown reflect the edition selected above; older editions can differ for a small number of categories, noted where that is the case. Always confirm the edition and any local amendments your jurisdiction has actually adopted.