Fire Sprinkler Pipe Sizing Calculator
Size fire sprinkler piping per NFPA 13 based on hazard classification, sprinkler count, and coverage area.
Inputs
Results
Pipe Diameter
2.5 in
Design Flow
156 GPM
Friction Loss10.33 PSI
Design Area1,560 sq ft
How to Use This Calculator
- Enter Number of Sprinklers, Area per Sprinkler (sq ft), and Hazard Classification.
- Set Light Hazard, Ordinary Hazard, and Extra Hazard.
- Adjust Pipe Run Length (ft) as needed.
- Review Pipe Diameter (in) and Design Flow (GPM).
- Use Friction Loss (PSI) and Design Area (sq ft) to inform your decision.
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