Convert Litres per second to Cubic kilometres per year
Convert Litres per second (L/s) to Cubic kilometres per year (km³/yr) instantly and accurately.
Conversion Formula
km³/yr = L/s × 3.155760000e-5
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 kilometres per year
The cubic kilometre per year (km³/yr) equals 10⁹/(365.25×86400) ≈ 31.688 m³/s, the unit used in global hydrology, glaciology, and climate science for river basin runoff, ice-sheet mass balance, and groundwater storage change. Total global freshwater river runoff is ≈37 000 km³/yr; the Amazon alone contributes ≈6 600 km³/yr; the Greenland ice sheet loses ≈280 km³/yr to melt and calving. 1 km³/yr ≈ 31.69 m³/s.
Quick Reference Table
| Litres per second (L/s) | Cubic kilometres per year (km³/yr) |
|---|---|
| 1 L/s | 3.156 × 10-5 km³/yr |
| 2 L/s | 6.312 × 10-5 km³/yr |
| 5 L/s | 0.000157788 km³/yr |
| 10 L/s | 0.000315576 km³/yr |
| 25 L/s | 0.00078894 km³/yr |
| 50 L/s | 0.00157788 km³/yr |
| 100 L/s | 0.00315576 km³/yr |