Convert US quarts per hour to Cubic kilometres per year
Convert US quarts per hour (qt/h) to Cubic kilometres per year (km³/yr) instantly and accurately.
Conversion Formula
km³/yr = qt/h × 8.295729925e-9
About US quarts per hour
The US quart per hour (qt/h) equals 3.785411784×10⁻³/4/3600 ≈ 2.629×10⁻⁷ m³/s, used in US agricultural irrigation drippers (emitters rated in qt/h) and hobby aquaculture systems. A drip emitter rated 1 qt/h ≈ 0.946 L/h is a common size for garden irrigation in the US market. 1 US qt/h ≈ 2.629×10⁻⁷ m³/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
| US quarts per hour (qt/h) | Cubic kilometres per year (km³/yr) |
|---|---|
| 1 qt/h | 8.296 × 10-9 km³/yr |
| 2 qt/h | 1.659 × 10-8 km³/yr |
| 5 qt/h | 4.148 × 10-8 km³/yr |
| 10 qt/h | 8.296 × 10-8 km³/yr |
| 25 qt/h | 2.074 × 10-7 km³/yr |
| 50 qt/h | 4.148 × 10-7 km³/yr |
| 100 qt/h | 8.296 × 10-7 km³/yr |