Occupancy Load Calculator
Enter the area and pick the use classification — this tool applies the IBC Table 1004.5 occupant-load factor to compute the design occupant load. Use the total to size egress width, exit count, restrooms, and sprinkler coverage.
Educational estimator. Occupant load is one input to egress design, exit count, restroom count, and sprinkler classification — final numbers must be signed by a registered design professional. Factors below are per IBC 2021 Table 1004.5. Fixed-seating areas are counted by seat count, not by area.
Occupancy load
Total occupant load
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Code cited: IBC 2021 Table 1004.5 — Maximum Floor Area Allowances per Occupant. Occupant load is used in §1005 (egress width), §1006 (exit count), and drives sprinkler-classification and plumbing-fixture counts elsewhere in the IBC.