Convert Cubic feet per minute to Cubic inches per second

Convert Cubic feet per minute (ft³/min) to Cubic inches per second (in³/s) instantly and accurately.

Cubic feet per minute (ft³/min)
Cubic inches per second (in³/s)

Conversion Formula

in³/s = ft³/min × 28.8

About Cubic feet per minute

The cubic foot per minute (cfm or ft³/min) equals 0.028316846592/60 ≈ 4.719×10⁻⁴ m³/s, the dominant unit for ventilation, HVAC airflow, and compressed-air system design in the US. ASHRAE ventilation standards, building-code fresh-air requirements, and dust-collector capacity are all stated in cfm. A residential HVAC system moves 800-1 200 cfm; an industrial dust collector handles 2 000-20 000 cfm. 1 cfm ≈ 0.4719 L/s.

About Cubic inches per second

The cubic inch per second (in³/s) equals 1.6387064×10⁻⁵ m³/s, used in US automotive engineering for engine displacement sweep rate, fuel-injector calibration, and hydraulic actuator speed specifications. An engine injector delivering 15 in³/s of fuel corresponds to roughly 15.5 mL/s; hydraulic jacks in US equipment are rated in in³/s at operating pressure. 1 in³/s ≈ 1.639×10⁻⁵ m³/s = 0.016387 L/s.

Quick Reference Table

Cubic feet per minute (ft³/min)Cubic inches per second (in³/s)
1 ft³/min28.8 in³/s
2 ft³/min57.6 in³/s
5 ft³/min144 in³/s
10 ft³/min288 in³/s
25 ft³/min720 in³/s
50 ft³/min1440 in³/s
100 ft³/min2880 in³/s

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