Convert Litres per second to Cubic metres per second
Convert Litres per second (L/s) to Cubic metres per second (m³/s) instantly and accurately.
Conversion Formula
m³/s = L/s × 0.001
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 metres per second
The cubic metre per second (m³/s) is the SI coherent unit of volumetric flow rate. It is used for large river discharges, turbine inlet flows, and major pipeline capacities. The Amazon River at its mouth averages ≈200 000 m³/s; a large hydroelectric turbine passes 400-800 m³/s; a major municipal water-main carries 5-20 m³/s. 1 m³/s = 1 000 L/s ≈ 15 850 US gal/min = 35.315 ft³/s.
Quick Reference Table
| Litres per second (L/s) | Cubic metres per second (m³/s) |
|---|---|
| 1 L/s | 0.001 m³/s |
| 2 L/s | 0.002 m³/s |
| 5 L/s | 0.005 m³/s |
| 10 L/s | 0.01 m³/s |
| 25 L/s | 0.025 m³/s |
| 50 L/s | 0.05 m³/s |
| 100 L/s | 0.1 m³/s |