Dynamic (Absolute) Viscosity - Converting Chart
Fluid viscosity is an important property in the analysis of liquid behavior and fluid motion near solid boundaries.
The viscosity is fluid resistance to shear or flow and is a measure of the adhesive (cohesive) or frictional properties of a fluid. The resistance is caused by inter-molecular friction exerted when layers of fluids attempts to slide by an other.
A Dynamic or Absolute Viscosity Units Converting Table
The table below can be used to convert between common dynamic or absolute viscosity units.
| Convert from | Multiply by | ||||
|---|---|---|---|---|---|
| Convert to | |||||
| Poiseuille (Pa s) | Poise (dyne s/cm2) (g/cm s) | centipoise (cP) | kg/m h | kgf s/m2 | |
| Poiseuille (Pa s) |
1 | 10 | 103 | 3.63 103 | 0.102 |
| Poise (dyne s/cm2) (g/cm s) |
0.1 | 1 | 100 | 360 | 0.0102 |
| centipoise (cP) |
0.001 | 0.01 | 1 | 3.6 | 0.00012 |
| kg/m h | 2.78 10-4 | 0.00278 | 0.0278 | 1 | 2.83 10-5 |
| kgf s/m2 | 9.81 | 98.1 | 9.81 103 | 3.53 104 | 1 |
| lbf s/inch2 | 6.89 103 | 6.89 104 | 6.89 106 | 2.48 107 | 703 |
| lbf s/ft2 | 47.9 | 479 | 4.79 104 | 1.72 105 | 0.0488 |
| lbf h/ft2 | 1.72 105 | 1.72 106 | 1.72 108 | 6.21 108 | 1.76 104 |
| lb/ft s | 1.49 | 14.9 | 1.49 103 | 5.36 103 | 0.152 |
| lb/ft h | 4.13 10-4 | 0.00413 | 0.413 | 1.49 | 4.22 10-5 |
| Convert from | Multiply by | ||||
|---|---|---|---|---|---|
| Convert to | |||||
| lbf s/inch2 | lbf s/ft2 | lbf h/ft2 | lb/ft s | lb/ft h | |
| Poiseuille (Pa s) |
1.45 10-4 | 0.0209 | 5.8 10-6 | 0.672 | 2.42 103 |
| Poise (dyne s/cm2) (g/cm s) |
1.45 10-5 | 0.00209 | 5.8 10-7 | 0.0672 | 242 |
| centipoise (cP) |
1.45 10-7 | 2.09 10-5 | 5.8 10-9 | 0.000672 | 2.42 |
| kg/m h | 4.03 10-8 | 5.8 10-6 | 1.61 10-9 | 0.000187 | 0.672 |
| kgf s/m2 | 0.00142 | 20.5 | 5.69 10-5 | 6.59 | 2.37 104 |
| lbf s/inch2 | 1 | 144 | 0.04 | 4.63 103 | 1.67 107 |
| lbf s/ft2 | 0.00694 | 1 | 0.000278 | 32.2 | 1.16 105 |
| lbf h/ft2 | 25 | 3.6 103 | 1 | 1.16 105 | 4.17 108 |
| lb/ft s | 0.000216 | 0.0311 | 8.63 10-6 | 1 | 3.6 103 |
| lb/ft h | 6 10-8 | 1.16 105 | 2.4 10-9 | 0.000278 | 1 |
Example - Converting Dynamic Viscosity from centipoise to lb/ft s
From the table above - to convert from centipoise(cP) to lb/ft s - centipoise must be multiplied with 0.000672.
10 centipoise can then be converted like
(10 centipoise) 0.000672 = 0.00672 lb/ft s
Related Topics
• Flow Measurements
Flow metering principles - Orifice, Venturi, Flow Nozzles, Pitot Tubes, Target, Variable Area, Positive Displacement, Turbine, Vortex, Electromagnetic, Ultrasonic Doppler, Ultrasonic Time-of-travel, Mass Coriolis, Mass Thermal, Weir V-notch, Flume Parshall and Sluice Gate flow meters and more.
• Fluid Mechanics
The study of fluids - liquids and gases. Involving velocity, pressure, density and temperature as functions of space and time.
• Viscosities
Viscosities of products and chemical species at varying conditions.
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