Convert UK gallons per second to Cubic kilometres per year
Convert UK gallons per second (gal/s) to Cubic kilometres per year (km³/yr) instantly and accurately.
Conversion Formula
km³/yr = gal/s × 0.0001434636898
About UK gallons per second
The UK (imperial) gallon per second (gal/s) equals 4.54609×10⁻³ m³/s, about 20% larger than the US gallon per second. It appears in pre-metric British fire-fighting standards, large pump test certificates, and naval engineering calculations. A UK fire engine pump rated 1 000 UK gal/min delivers ≈16.67 UK gal/s. 1 UK gal/s = 4.54609×10⁻³ m³/s ≈ 1.201 US gal/s.
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
| UK gallons per second (gal/s) | Cubic kilometres per year (km³/yr) |
|---|---|
| 1 gal/s | 0.000143464 km³/yr |
| 2 gal/s | 0.000286927 km³/yr |
| 5 gal/s | 0.000717318 km³/yr |
| 10 gal/s | 0.00143464 km³/yr |
| 25 gal/s | 0.00358659 km³/yr |
| 50 gal/s | 0.00717318 km³/yr |
| 100 gal/s | 0.0143464 km³/yr |