Dust Collection Cfm Calculator
Determine the CFM airflow you need for clean, safe air in the shop.
Dust Collection CFM Calculator
Estimate the airflow (CFM) required to maintain efficient dust collection in your workshop.
Formula
`CFM ≈ Duct Area × Transport Velocity` (plus losses from runs & fittings)How to use
- Pick tool port diameter & target velocity (e.g., ~4000 FPM).
- Estimate losses by duct length, elbows, filters.
- Choose a collector that delivers target CFM at real static pressure.
Pro tips
- • Use smooth-radius fittings; minimize flex hose.
- • Seal leaks; they murder CFM.
- • Capture at the source—hood design matters.
FAQs
Is bigger duct always better?
Not always—velocity can drop; size for both CFM and velocity.
What is static pressure?
The resistance to airflow from ducting, filters, hoods, etc.
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