Convert Cubic kilometres per year to Millilitres per second
Convert Cubic kilometres per year (km³/yr) to Millilitres per second (mL/s) instantly and accurately.
Conversion Formula
mL/s = km³/yr × 31688087.81
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 Millilitres per second
The millilitre per second (mL/s) equals 10⁻⁶ m³/s, common in laboratory syringe pumps, HPLC systems, and medical infusion devices. A standard IV drip running at 1 mL/s would deliver 3.6 L/h - a rapid infusion rate used in resuscitation; analytical HPLC columns run 0.5-5 mL/s. 1 mL/s = 10⁻⁶ m³/s = 60 mL/min = 3.6 L/h.
Quick Reference Table
| Cubic kilometres per year (km³/yr) | Millilitres per second (mL/s) |
|---|---|
| 1 km³/yr | 31688100 mL/s |
| 2 km³/yr | 63376200 mL/s |
| 5 km³/yr | 158440000 mL/s |
| 10 km³/yr | 316881000 mL/s |
| 25 km³/yr | 792202000 mL/s |
| 50 km³/yr | 1.584 × 109 mL/s |
| 100 km³/yr | 3.169 × 109 mL/s |