Convert Cubic kilometres per year to Cubic inches per second
Convert Cubic kilometres per year (km³/yr) to Cubic inches per second (in³/s) instantly and accurately.
Conversion Formula
in³/s = km³/yr × 1933725.762
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.
About Cubic inches per second
The cubic inch per second (in³/s) equals 1.6387064×10⁻⁵ m³/s, used in US automotive engineering for engine displacement sweep rate, fuel-injector calibration, and hydraulic actuator speed specifications. An engine injector delivering 15 in³/s of fuel corresponds to roughly 15.5 mL/s; hydraulic jacks in US equipment are rated in in³/s at operating pressure. 1 in³/s ≈ 1.639×10⁻⁵ m³/s = 0.016387 L/s.
Quick Reference Table
| Cubic kilometres per year (km³/yr) | Cubic inches per second (in³/s) |
|---|---|
| 1 km³/yr | 1933730 in³/s |
| 2 km³/yr | 3867450 in³/s |
| 5 km³/yr | 9668630 in³/s |
| 10 km³/yr | 19337300 in³/s |
| 25 km³/yr | 48343100 in³/s |
| 50 km³/yr | 96686300 in³/s |
| 100 km³/yr | 193373000 in³/s |