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Mihsaba›Kinematic Viscosity Calculator

Kinematic Viscosity Calculator

Calculate kinematic viscosity from dynamic viscosity and density, with conversion to centistokes.

1 cSt = 1 mm²/s = 10⁻⁶ m²/s.

How to use

Kinematic viscosity is dynamic viscosity divided by fluid density and is widely used in flow characterization and Reynolds-number calculations.

  1. Enter μ in Pa·s.
  2. Enter density in kg/m³.
  3. Calculate ν.
  4. Review m²/s and cSt.

How it is calculated

ν=μ/ρ

Example

Using μ=0.001 Pa·s and ρ=1000 kg/m³ gives ν=1×10⁻⁶ m²/s = 1 cSt.

Important notes

Viscosity and density can both vary with temperature and pressure; use values for the actual state.

Frequently asked questions

SI unit of ν?

m²/s.

Relation to cSt?

1 cSt equals 10⁻⁶ m²/s.

Are μ and ν the same?

No; μ is dynamic and ν=μ/ρ is kinematic.