
Sprinkler Hydraulic Calc
NFPA 13 Sprinkler Demand
0 ratings
$0.99
With Ads
About
Sprinkler Hydraulic Calc helps fire protection professionals calculate sprinkler system demand using the NFPA 13 density/area method. Built for fire protection engineers, designers, and inspectors working on commercial and industrial projects.
WHAT IT CALCULATES
- Sprinkler demand (gpm) using density/area method
- K-factor flow at any pressure (Q = K * sqrt(P))
- Number of operating sprinklers from design area and coverage
- Total system demand including hose stream allowance
- Density and design area from NFPA 13 curves
NFPA 13 COMPLIANT
All calculations follow NFPA 13 (current edition) density/area curves, K-factor table, and hose stream demand requirements. Built-in lookup tables for Light, Ordinary Group 1 & 2, and Extra Hazard Group 1 & 2 occupancies.
HAZARD CLASSIFICATIONS
- Light Hazard (LH)
- Ordinary Hazard Group 1 (OH1)
- Ordinary Hazard Group 2 (OH2)
- Extra Hazard Group 1 (EH1)
- Extra Hazard Group 2 (EH2)
FEATURES
- Works 100% offline
- Save calculations to history
- Export professional PDF reports
- English and Spanish (en/es)
- Light and dark themes (in-app purchase)
- Material Design 3 interface
- Override individual parameters (density, heads count, hose demand, coverage)
PRO VERSION ($2.99)
Remove ads, get unlimited calculations, and unlock dark theme.
PART OF FIRETOOLS SUITE
Sprinkler Hydraulic Calc is part of the FireTools collection of professional calculators for fire protection specialists.
Contact: support@tradetools.dev
Privacy: https://tradetools.dev/privacy-policy.html
OPTIONAL PRO UPGRADE - $2.99 ONE-TIME IN-APP PURCHASE
The following features require a separate one-time in-app purchase. They are not required to use the calculator:
- Unlimited saved calculation history
- PDF export of results
- Dark theme
- Ad-free experience
Show more
What's New in Sprinkler Hydraulic Calc
1.0.1
August 20, 2026



