Viscosity calculator

Exactly on the milliliter

Viscosity is a measure of the resistance of a fluid to being deformed by either shear stress or extensional stress. It is commonly perceived as “thickness”, or resistance to flow. Viscosity describes a fluid’s internal resistance to flow and may be thought of as a measure of fluid friction.

You need the value for density, as well as a value for dynamic or kinematic viscosity to perform a calculation.

Density: g cm-3


Dynamic viscosity:

N s m-2 = kg m-1 s-1 = Pa s

dyn s cm-2 = g cm-1 s-1 = Poise

cp, centipoise = m Pas

kg m-1 h-1

lb ft-1 s-1 = pdl s ft-2

lb in-1 s-1


Kinematic viscosity:

cm2/s, stoke, square centimeter per second

mm2/s, cstoke, square milimeter per second

m2/h, square meter per hour

in2/s, square inches per second

ft2/s, square foot per second

ft2/h, square foot per hour


The calculator on this website is for informational purposes only and we make no claim as to the accuracy, completeness or suitability of the results generated by our calculator for any particular purpose. Use of the results is at the user’s own risk.

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