Note that the conversion from Absolute (Dynamic) Viscosity to Kinematic Viskosity depends on fluid density . The conversions below are for fluid with density like water - where
specific gravity = 1
|Absolute Viscosity||Kinematic Viscosity|
| centiPoise |
(10 -3 N s/m 2 , cP)
| p oise |
( 10 -1 N s/m 2 , P)
| c entiStokes |
( 10 -6 m 2 /s, mm 2 /s, cSt)
| s tokes |
(1 0 -4 m 2 /s , S)
| Saybolt Seconds Universal |
|at 100 o F (37.8 o C)|| at 210 o F (98.9 o C) |
1) The Saybolt Universal SUS viscosity equivalent (SSU or SUS) to a given kinematic viscosity varies with the temperature at which the determination is made. Check ASTM D 2161 "Standard Practice for Conversion of Kinematic Viscosity to Saybolt Universal Viscosity or to Saybolt Furol Viscosity"
2) Water at 68.4 o F (20.2 o C) has an absolute viscosity of one - 1 - centiPoise .
Note! Viscosity conversions are based on fluids with specific gravity of one .
At temperatures other than 100 or 210°F, convert kinematic viscosity to Saybolt Universal viscosity with
U t = U 100°F (1 + 0.000061 (t - 100)) (1)
U t = Saybolt Second Universal (SSU) viscosity at temperature t (°F)
U 100°F = Saybolt Second Universal (SSU) viscosity at 100°F in Saybolt Universal seconds equivalent to kinematic viscosity in centiStokes at temperature t (°F)
Download and print Kinematic Viscosity Unit Converting Chart
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