Convert Cubic inches per second to Cubic feet per minute
Convert Cubic inches per second (in³/s) to Cubic feet per minute (ft³/min) instantly and accurately.
Conversion Formula
ft³/min = in³/s × 0.03472222222
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.
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.
Quick Reference Table
| Cubic inches per second (in³/s) | Cubic feet per minute (ft³/min) |
|---|---|
| 1 in³/s | 0.0347222 ft³/min |
| 2 in³/s | 0.0694444 ft³/min |
| 5 in³/s | 0.173611 ft³/min |
| 10 in³/s | 0.347222 ft³/min |
| 25 in³/s | 0.868056 ft³/min |
| 50 in³/s | 1.73611 ft³/min |
| 100 in³/s | 3.47222 ft³/min |