Density to Viscosity Calculator

Formula

To calculate the Dynamic Viscosity (\(μ\)):

\[ μ = ρ \times ν \]

Where:

\(μ\) is the Dynamic Viscosity (Pa·s)
\(ρ\) is the Density of the Fluid (kg/m³)
\(ν\) is the Kinematic Viscosity (m²/s)

What is Dynamic Viscosity?

Dynamic viscosity is a measure of a fluid's resistance to flow. It describes the internal friction of a moving fluid. A fluid with large viscosity resists motion because its molecular makeup gives it a lot of internal friction. A fluid with low viscosity flows easily because its molecular makeup results in very little friction when it is in motion. It is an important property in the study of fluid dynamics and is typically measured in pascal-seconds (Pa·s).

Example Calculation 1

Let's assume the following values:

Density of the Fluid (\(ρ\)) = 1000 kg/m³
Kinematic Viscosity (\(ν\)) = 0.001 m²/s

Using the formula:

\[ μ = 1000 \times 0.001 = 1 \]

The Dynamic Viscosity is 1 Pa·s.

Example Calculation 2

Let's assume the following values:

Density of the Fluid (\(ρ\)) = 850 kg/m³
Kinematic Viscosity (\(ν\)) = 0.0008 m²/s

Using the formula:

\[ μ = 850 \times 0.0008 = 0.68 \]

The Dynamic Viscosity is 0.68 Pa·s.