Fire Hydrant Spacing Calculator

Determine the number of hydrants and recommended spacing based on building type and fire flow requirements.

Total building footprint area in square feet.
sq ft
Occupancy classification affects required fire flow and hydrant spacing.
Required fire flow from the fire flow analysis. Typical range: 500-8000 GPM.
GPM
Rated flow capacity per hydrant at 20 psi residual. Typically 500-1500 GPM.
GPM

Results

Number of Hydrants Needed-
Recommended Spacing-ft
Coverage Area per Hydrant-sq ft
Coverage Radius-ft
References: IFC Appendix C — Fire Hydrant Locations, NFPA 1 — Fire Code.