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NFPA
Validated against the standard.
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How it works
Enter your values
Type in your inputs — the app fills code tables and constants for you, so there's nothing to look up.
Get a code-checked result
Instant answer with a clear PASS / FAIL and the exact NFPA reference behind every number.
Save & export
Keep a history of calculations and export a clean PDF report to share or attach to a permit (Pro).
What this reference does
Fire protection work spans several NFPA standards, and the key numbers come up constantly. This app is a quick, offline reference to the rules fire-protection designers and inspectors use most across the major NFPA documents.
Standards it summarizes
- NFPA 13 — sprinkler systems: hazard classes, density/area, spacing, hanger support.
- NFPA 14 — standpipes: classes, minimum pressures, required flow.
- NFPA 20 — fire pumps: the churn, rated, and 150% performance points.
- NFPA 72 — fire alarm: secondary power and notification requirements.
- NFPA 10 — portable extinguishers: ratings and travel distance.
- NFPA 25 — inspection, testing, and maintenance of water-based systems.
Why it helps
When you need the 150% pump rule, the standpipe pressure minimum, or the Class A travel distance on the spot, the reference puts the standard and the value side by side.
Related calculators
Apply the rules with the sprinkler hydraulic, fire pump, and standpipe calculators.
NFPA reference FAQ
Which standards does it cover?
The ones fire-protection work touches most: NFPA 13, 14, 20, 72, 10, and 25, summarized to the key design and inspection numbers.
Is it a replacement for the standards?
No — it is a fast field reference. Always confirm against the adopted edition of the relevant NFPA standard and local amendments for final design.
Does it work offline?
Yes, the full reference is built in and works 100% offline with no account. Free with rewarded ads; a one-time $2.99 Pro unlock adds PDF export and saved history.
Get Nfpa Reference on your phone
Free with rewarded ads · $2.99 lifetime Pro · iOS & Android. Works 100% offline on the job site.