Engineering Units
Kinematic Viscosity Converter
Kinematic viscosity is dynamic viscosity divided by density, in mΒ²/s. The centistoke (cSt = mmΒ²/s) is used for oils. It must not be converted directly to dynamic viscosity without density.
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About this category: Kinematic Viscosity
Kinematic viscosity is dynamic viscosity divided by density, in mΒ²/s. The centistoke (cSt = mmΒ²/s) is used for oils. It must not be converted directly to dynamic viscosity without density.
Kinematic viscosity is in mΒ²/s; the centistoke cSt = 1 mmΒ²/s, the usual measure for grading oils.
Practical uses
- Engine and hydraulic oil grading
- Pipeline flow viscosity
- ISO and SAE oil standards
Available units
| Unit | Name | Definition | Classification |
|---|---|---|---|
| mΒ²/s | Square Meter per Second | The SI unit of kinematic viscosity. | SI Derived |
| mmΒ²/s | Square Millimeter per Second | One mmΒ²/s equals exactly one centistoke. | SI Derived |
| cSt | Centistokes | One cSt = 1 mmΒ²/s, common for engine oils. | Non-SI |
| St | Stokes | One stokes = 100 mmΒ²/s (CGS). | Non-SI |
| ftΒ²/s | Square Foot per Second | One ftΒ²/s = 0.0929 mΒ²/s. | Non-SI |
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