Convert Litres per second to Cubic feet per minute
Convert Litres per second (L/s) to Cubic feet per minute (ft³/min) instantly and accurately.
Conversion Formula
ft³/min = L/s × 2.118880003
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.
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
| Litres per second (L/s) | Cubic feet per minute (ft³/min) |
|---|---|
| 1 L/s | 2.11888 ft³/min |
| 2 L/s | 4.23776 ft³/min |
| 5 L/s | 10.5944 ft³/min |
| 10 L/s | 21.1888 ft³/min |
| 25 L/s | 52.972 ft³/min |
| 50 L/s | 105.944 ft³/min |
| 100 L/s | 211.888 ft³/min |