Convert Centistokes to Square metres per second
Convert Centistokes (cSt) to Square metres per second (m²/s) instantly and accurately.
Conversion Formula
m²/s = cSt × 1.000000000e-6
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 metres per second
The square metre per second (m²/s) is the SI coherent unit of kinematic viscosity (ν = μ/ρ). Air at 20 °C ≈ 1.516 × 10⁻⁵ m²/s; water at 20 °C ≈ 1.004 × 10⁻⁶ m²/s; glycerol ≈ 1.19 × 10⁻³ m²/s. It is the standard in CFD codes and SI research literature. 1 m²/s = 10⁴ St = 10⁶ cSt.
Quick Reference Table
| Centistokes (cSt) | Square metres per second (m²/s) |
|---|---|
| 1 cSt | 1 × 10-6 m²/s |
| 2 cSt | 2 × 10-6 m²/s |
| 5 cSt | 5 × 10-6 m²/s |
| 10 cSt | 1 × 10-5 m²/s |
| 25 cSt | 2.5 × 10-5 m²/s |
| 50 cSt | 5 × 10-5 m²/s |
| 100 cSt | 1 × 10-4 m²/s |