Convert Centistokes to Square millimetres per hour
Convert Centistokes (cSt) to Square millimetres per hour (mm²/h) instantly and accurately.
Conversion Formula
mm²/h = cSt × 3600
About Centistokes
The centistoke (cSt) equals 10⁻⁶ m²/s = 1 mm²/s. It is the dominant unit for kinematic viscosity in industry worldwide. ASTM D445, ISO 3104, and ACEA lubricant specifications all use cSt. Water at 20 °C ≈ 1.004 cSt; diesel at 40 °C: 2.0-4.5 cSt; SAE 40 oil at 100 °C: 12.5-16.3 cSt. 1 cSt = 10⁻² St.
About Square millimetres per hour
The square millimetre per hour (mm²/h) equals 1/(3.6 × 10⁹) m²/s ≈ 2.78 × 10⁻¹⁰ m²/s. It appears in materials science for solid-state diffusion and thin-film growth studies where hourly timescales are more natural than seconds. 1 mm²/h = 1/3600 mm²/s = 1/3600 cSt.
Quick Reference Table
| Centistokes (cSt) | Square millimetres per hour (mm²/h) |
|---|---|
| 1 cSt | 3600 mm²/h |
| 2 cSt | 7200 mm²/h |
| 5 cSt | 18000 mm²/h |
| 10 cSt | 36000 mm²/h |
| 25 cSt | 90000 mm²/h |
| 50 cSt | 180000 mm²/h |
| 100 cSt | 360000 mm²/h |