learn.howToCalculate
learn.whatIsHeading
CFM Calculator helps contractors and tradespeople accurately size, spec, and estimate materials and systems.
Wzór
CFM = Area (sf) × Ceiling Height / Air Changes per Hour / 60
Przewodnik krok po kroku
- 1Calculate room volume, multiply by required air changes, convert
- 2Apply the formula using your project measurements
- 3Add required safety factors or waste allowances per code
Rozwiązane przykłady
Wejście
400 sf room, 9 ft ceiling, 6 ACH
Wynik
CFM = (400 × 9 × 6)/60 = 360 CFM
Częste błędy do unikania
- ✕Not applying code-required safety factors or derating
- ✕Forgetting to account for waste and cut losses in material estimates
Gotowy do obliczeń? Wypróbuj darmowy kalkulator CFM
Spróbuj sam →