AFFF Concentration and Application Calculator

Calculate AFFF (Aqueous Film-Forming Foam) concentrate requirements and proportioning for fire suppression

Input Parameters

Results

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Water Flow Required
gpm
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AFFF Concentrate Required
gal
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Total Foam Solution
gal
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Estimated Film Spread
ft²/gal
Note: AFFF contains PFAS compounds subject to environmental regulations. Many jurisdictions are transitioning to fluorine-free foams (F3). Check local regulations before specifying AFFF systems.

Reference

AFFF Proportioning per NFPA 11 & NFPA 16 AFFF concentrations: 1%, 3%, or 6% Foam solution = water + concentrate Concentrate volume = solution volume × (C/100) Water flow = solution flow × (1 - C/100) AFFF forms aqueous film on hydrocarbon surfaces MilSpec AFFF: MIL-PRF-24385F (3% and 6%)