Convert Cubic feet per minute to Litres per second
Convert Cubic feet per minute (ft³/min) to Litres per second (L/s) instantly and accurately.
Conversion Formula
L/s = ft³/min × 0.4719474432
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 Litres per second
The litre per second (L/s) equals 10⁻³ m³/s, the standard unit for municipal water-supply engineering, fire-fighting flows, and HVAC system air handling. A fire hydrant delivers 15-30 L/s; a household mains water connection is typically 0.1-0.5 L/s; a large building HVAC chilled-water loop circulates 50-200 L/s. 1 L/s = 10⁻³ m³/s = 3.6 m³/h ≈ 15.85 US gal/min.
Quick Reference Table
| Cubic feet per minute (ft³/min) | Litres per second (L/s) |
|---|---|
| 1 ft³/min | 0.471947 L/s |
| 2 ft³/min | 0.943895 L/s |
| 5 ft³/min | 2.35974 L/s |
| 10 ft³/min | 4.71947 L/s |
| 25 ft³/min | 11.7987 L/s |
| 50 ft³/min | 23.5974 L/s |
| 100 ft³/min | 47.1947 L/s |