Convert Square millimetres per second to Kilostokes
Convert Square millimetres per second (mm²/s) to Kilostokes (kSt) instantly and accurately.
Conversion Formula
kSt = mm²/s × 1.000000000e-5
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.
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.
Quick Reference Table
| Square millimetres per second (mm²/s) | Kilostokes (kSt) |
|---|---|
| 1 mm²/s | 1 × 10-5 kSt |
| 2 mm²/s | 2 × 10-5 kSt |
| 5 mm²/s | 5 × 10-5 kSt |
| 10 mm²/s | 1 × 10-4 kSt |
| 25 mm²/s | 0.00025 kSt |
| 50 mm²/s | 0.0005 kSt |
| 100 mm²/s | 0.001 kSt |