Convert US quarts per second to Cubic kilometres per year
Convert US quarts per second (qt/s) to Cubic kilometres per year (km³/yr) instantly and accurately.
Conversion Formula
km³/yr = qt/s × 2.986462773e-5
About US quarts per second
The US quart per second (qt/s) equals 3.785411784×10⁻³/4 ≈ 9.464×10⁻⁴ m³/s, used in US industrial filling lines handling quart-size containers (motor oil, paint, sauce). A high-speed filling machine loading 1 qt bottles at 4 per second processes 4 qt/s per nozzle. 1 US qt/s ≈ 9.464×10⁻⁴ m³/s = 0.9464 L/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 second (qt/s) | Cubic kilometres per year (km³/yr) |
|---|---|
| 1 qt/s | 2.986 × 10-5 km³/yr |
| 2 qt/s | 5.973 × 10-5 km³/yr |
| 5 qt/s | 0.000149323 km³/yr |
| 10 qt/s | 0.000298646 km³/yr |
| 25 qt/s | 0.000746616 km³/yr |
| 50 qt/s | 0.00149323 km³/yr |
| 100 qt/s | 0.00298646 km³/yr |