Professional fire protection calculators for engineers and contractors. All apps work 100% offline.
Hydraulic calculations per NFPA 13. Density/area curves, K-factor flow, hose stream demand for all hazard classes.
NFPA 13Pipe schedule method per NFPA 13 §23.4. Pipe sizes by section for steel, CPVC, and copper systems.
NFPA 13Fire pump selection per NFPA 20. Rated flow, pressure, horsepower, pump type, and driver selection.
NFPA 20Standpipe system design per NFPA 14. Flow rates, pressures, and pipe sizes by class (I, II, III).
NFPA 14Detector spacing and placement per NFPA 72. Smoke and heat detectors, NAC circuit calculations.
NFPA 72Occupancy hazard classification per NFPA 13. 100+ occupancy types mapped to hazard class, density, and area.
NFPA 13Flow test analysis with Hazen-Williams. Static, residual, and flow pressure calculations for fire protection supply.
NFPA 13/AWWAPipe hanger and support spacing per NFPA 13 Table 9.2.2.1. Seismic bracing per §9.3.
NFPA 13Extinguisher selection and placement per NFPA 10. Class A/B/C/D/K, travel distance, minimum ratings.
NFPA 10Searchable reference for NFPA 13, 14, 20, 25, 72, and 10. Key tables, figures, and requirements at your fingertips.
All NFPA