Toilet Fixture Calculator
Calculate the number of WCs, urinals and wash basins required for a given occupancy.
Assumptions used in this calculation
- Simplified ratios: A general planning estimate, actual code requirements vary by jurisdiction and occupancy type.
About this calculator
The toilet fixture calculator applies plumbing-code occupant ratios to a building's occupant count to estimate the minimum number of water closets, urinals and wash basins required.
Worked example
100 occupants, 1 fixture per 25 people
Result: 4 WCs (or split with urinals), 3 wash basins
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