Practical tools for measured work
Dynamic and kinematic viscosity converter
Convert dynamic and kinematic viscosity using fluid density, including cP and cSt.
Calculate the layout, check the diagram, then print the result for the shop or jobsite.
How it works
Kinematic viscosity ν = μ/ρ. One centipoise is 0.001 Pa·s; one centistoke is 0.000001 m²/s. A fluid with density 1000 kg/m³ and dynamic viscosity 1 cP has kinematic viscosity 1 cSt.
Current-input example
The result above uses these exact values. This snapshot is included when the page is printed so the output can be checked against the original measurements.
- Known viscosity
- Dynamic viscosity
- Viscosity value
- 1
- Viscosity unit
- cP (mPa·s)
- Fluid density
- 1000 kg/m³
Primary result: Dynamic viscosity: 0.001 Pa·s.
Before using the result
- Check the selected mode, units and input values before using the result.
- Read the assumptions and rounding rules; compare the worked example with your intended calculation.
- A numerical result does not supply missing context or change the stated limitations.
Limitations
Density must be positive and measured at the same temperature and pressure as viscosity. Dynamic and kinematic viscosity are different physical quantities; converting between them always needs density.
Frequently asked questions
Which conditions should I enter?
Use the actual temperature, pressure, material and geometry for your case. Each result uses the assumptions stated below; a numerical result alone does not validate those assumptions.
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