Professional-grade calculators built for the fire service. No sign-up, no ads, no catch. Bookmark them, share them, embed them on your department site.
Calculate friction loss for any hose layout. Supports all common sizes from 1" to 5" with standard IFSTA coefficients.
Determine required fire flow using both NFA and Iowa State methods. Input building dimensions, construction type, and occupancy.
Calculate available hydrant flow from test data. Includes NFPA 291 color classification and pressure drop analysis.
Full PDP calculation with nozzle pressure, friction loss, elevation, and appliance losses. Includes common presets.
Generate monthly calendars for 24/48, 48/96, Kelly, and California schedules. Pick your anchor date and see your whole year.
First Due Co. offers AI-powered size-up scenarios, daily drills, radio practice, exam prep, and more. Train like your life depends on it.
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