Enter the dynamic viscosity (Pa-s) and the kinematic viscosity  (m^2/s) into the Density From Viscosity Calculator. The calculator will evaluate and display the Density From Viscosity. 

Density From Viscosity Formula

The following formula is used to calculate the Density From Viscosity. 

p = u / k 
  • Where p is the Density From Viscosity (kg/m^3)
  • u is the dynamic viscosity (Pa-s) 
  • k is the kinematic viscosity  (m^2/s) 

To calculate the density from viscosity, divide the dynamic viscosity by the kinematic viscosity.

How to Calculate Density From Viscosity?

The following example problems outline how to calculate Density From Viscosity.

Example Problem #1:

  1. First, determine the dynamic viscosity (Pa-s).
    1. The dynamic viscosity (Pa-s) is given as: 500.
  2. Next, determine the kinematic viscosity  (m^2/s).
    1. The kinematic viscosity  (m^2/s) is provided as: 250.
  3. Finally, calculate the Density From Viscosity using the equation above: 

p = u / k 

The values given above are inserted into the equation below:

p = 500 / 250  = 2 (kg/m^3)

Example Problem #2: 

For this problem, the variables needed are provided below:

dynamic viscosity (Pa-s) = 250

kinematic viscosity  (m^2/s) = 965

This example problem is a test of your knowledge on the subject. Use the calculator above to check your answer. p = u / k  = ?