SPARKIQ Fire — NFPA 72 (2025) Fire Alarm Calculators
A field toolkit of NFPA 72 fire alarm calculations, each citing the chapter its
answer comes from so you can check it against your own copy of the code. Works
offline once installed.
Calculators include:
- Secondary (standby) battery calculation
- NAC voltage drop
- Strobe candela coverage and spacing
- Audibility (dBA) and voice intelligibility
- Smoke and heat detector spacing, beam and duct detectors
- Fire growth, mounting heights, temporal patterns
This app needs JavaScript enabled to run its calculators. Not affiliated with or
endorsed by NFPA. “NFPA” and “NFPA 72” are registered trademarks of the National
Fire Protection Association; this app applies published requirements and does not
reproduce the code.