Convert Kilostokes to Square millimetres per second
Convert Kilostokes (kSt) to Square millimetres per second (mm²/s) instantly and accurately.
Conversion Formula
mm²/s = kSt × 100000
About Kilostokes
The kilostoke (kSt) equals 1000 St = 0.1 m²/s. It is used for extremely viscous materials such as heavy polymer melts and bitumen at low temperatures, where centistoke values would reach into the hundreds of thousands. 1 kSt = 10³ St = 10⁵ cSt = 0.1 m²/s.
About Square millimetres per second
The square millimetre per second (mm²/s) equals 10⁻⁶ m²/s, numerically identical to 1 centistoke (cSt). It is the preferred SI-consistent expression: ISO 3104, DIN 51562, and ASTM viscosity standards all use mm²/s interchangeably with cSt. Water at 20 °C ≈ 1.004 mm²/s; SAE 10W-30 at 100 °C: 9.3-12.5 mm²/s. 1 mm²/s = 1 cSt.
Quick Reference Table
| Kilostokes (kSt) | Square millimetres per second (mm²/s) |
|---|---|
| 1 kSt | 100000 mm²/s |
| 2 kSt | 200000 mm²/s |
| 5 kSt | 500000 mm²/s |
| 10 kSt | 1000000 mm²/s |
| 25 kSt | 2500000 mm²/s |
| 50 kSt | 5000000 mm²/s |
| 100 kSt | 10000000 mm²/s |