Convert US quarts per minute to Cubic kilometres per year
Convert US quarts per minute (qt/min) to Cubic kilometres per year (km³/yr) instantly and accurately.
Conversion Formula
km³/yr = qt/min × 4.977437955e-7
About US quarts per minute
The US quart per minute (qt/min) equals 3.785411784×10⁻³/4/60 ≈ 1.577×10⁻⁵ m³/s, encountered in US small-engine fuel system testing and food-processing pump calibration. Engine dynamometer fuel-flow instrumentation sometimes uses qt/min when testing small gasoline engines consuming 1-6 qt/min at full load. 1 US qt/min ≈ 1.577×10⁻⁵ 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 minute (qt/min) | Cubic kilometres per year (km³/yr) |
|---|---|
| 1 qt/min | 4.977 × 10-7 km³/yr |
| 2 qt/min | 9.955 × 10-7 km³/yr |
| 5 qt/min | 2.489 × 10-6 km³/yr |
| 10 qt/min | 4.977 × 10-6 km³/yr |
| 25 qt/min | 1.244 × 10-5 km³/yr |
| 50 qt/min | 2.489 × 10-5 km³/yr |
| 100 qt/min | 4.977 × 10-5 km³/yr |