Tools
Engineering calculators for hydraulic checks on standpipe and sprinkler systems.
Standpipe Pressure Calculator
Check whether residual pressure at the pump is enough to deliver required pressure at the top of a standpipe riser.
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Friction Loss Calculator
Quick Hazen-Williams friction loss for a given flow, pipe length, diameter, and C-factor.
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End Head Pressure Calculator
Calculate sprinkler flow from density and area, then find pressure required for standard and custom K-factors.
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Feet & Inches Calculator
Add, subtract, and multiply feet-inch-fraction measurements, calculate area, and convert to decimal feet.
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Soffit Sprinkler Placement
Enter soffit width and height to find required placement per NFPA 13-2019 Chapter 10 (standard spray) and Chapter 12 (residential), for pendent and sidewall sprinklers.
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