Poise-Stokes Converter
Convert between dynamic viscosity (poise) and kinematic viscosity (stokes) for fluids
Viscosity Conversion Calculator
Required for conversion between dynamic and kinematic viscosity
Force required per unit area to maintain flow
Resistance to flow under gravity
Conversion Results
Dynamic Viscosity Equivalents
Kinematic Viscosity Equivalents
Conversion Formulas
Kinematic Viscosity: ν = η / ρ
Dynamic Viscosity: η = ν × ρ
Where: ν = kinematic viscosity (stokes), η = dynamic viscosity (poise), ρ = density (g/cm³)
Conversion Notes
Example Calculation
Water at 20°C
Density (ρ): 0.9982 g/cm³
Dynamic Viscosity (η): 0.010016 poise
Need to find: Kinematic viscosity in stokes
Step-by-Step Calculation
ν = η / ρ
ν = 0.010016 poise / 0.9982 g/cm³
ν = 0.010034 stokes (St)
ν = 1.0034 centistokes (cSt)
Viscosity Types
Dynamic Viscosity (η)
Measures internal resistance to flow
Units: Poise (P), Centipoise (cP)
Kinematic Viscosity (ν)
Dynamic viscosity divided by density
Units: Stokes (St), Centistokes (cSt)
Common Viscosity Values
Values at room temperature (approximately 20°C)
Conversion Tips
1 poise = 100 centipoise
1 stoke = 100 centistokes
Density must be in g/cm³ for direct conversion
Viscosity depends on temperature
Higher values = thicker fluid
Understanding Viscosity and Unit Conversion
What is Viscosity?
Viscosity is a measure of a fluid's resistance to flow. It describes how "thick" or "thin" a fluid is. Honey has high viscosity (flows slowly), while water has low viscosity (flows easily).
Two Types of Viscosity
- •Dynamic Viscosity (η): Internal resistance to flow under applied force
- •Kinematic Viscosity (ν): Dynamic viscosity divided by fluid density
Conversion Formula
ν = η / ρ
- ν: Kinematic viscosity (stokes)
- η: Dynamic viscosity (poise)
- ρ: Density (g/cm³)
Note: Both viscosity types decrease as temperature increases. Always specify temperature when reporting viscosity values.
Applications
Industrial Fluids
Lubricants, hydraulic fluids, and process chemicals
Fuel Analysis
Fuel quality assessment and injection system design
Food Industry
Product consistency and flow behavior analysis