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# Water - Absolute (Dynamic) Viscosity vs. Temperature and Pressure

Absolute or dynamic viscosity is used to calculate Reynolds Number to determine if a fluid flow is laminar, transient or turbulent.

The absolute or dynamic viscosity of water depends on the temperature as indicated below:

Water - Absolute (Dynamic) Viscosity vs. Temperature and Pressure
TemperatureAbsolute - Dynamic - Viscosity
(cP)
(oF)(oC)
32 0 1.794
40 4.4 1.546
50 10.0 1.310
60 15.6 1.129
70 21.1 0.982
80 26.7 0.862
90 32.2 0.764
100 37.8 0.682
120 48.9 0.559
140 60.0 0.470
160 71.1 0.401
180 82.2 0.347
200 93.3 0.305
•  1 cP = 0.01 poise = 0.01 gram per cm second = 0.001 Pascal second = 1 milliPascal second = 0.001 N.s/m2
• Convert viscosity

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