🧪 Viscosity Unit Converter

Convert between dynamic and kinematic viscosity units for fluids.

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Viscosity Unit Converter

Viscosity Fundamentals: Convert between dynamic viscosity (Pa·s, cP, P) and kinematic viscosity (St, cSt, mm²/s) units. Dynamic viscosity measures resistance to flow, kinematic viscosity includes density.
Pascal Second
Pa·s

SI unit for dynamic viscosity. 1 Pa·s = 1 kg/(m·s).

Centipoise
cP

Common unit for dynamic viscosity. 1 cP = 0.001 Pa·s.

Poise
P

CGS unit for dynamic viscosity. 1 P = 0.1 Pa·s = 100 cP.

Stokes
St

CGS unit for kinematic viscosity. 1 St = 10⁻⁴ m²/s.

Centistokes
cSt

1 cSt = 10⁻⁶ m²/s. Used for oils and lubricants.

mm²/s
mm²/s

SI unit for kinematic viscosity. 1 mm²/s = 10⁻⁶ m²/s = 1 cSt.

Viscosity of Common Fluids

Water (20°C)
1.002 cP

Reference viscosity for water at room temperature.

Olive Oil
84 cP

Vegetable oil, high viscosity.

Glycerin
1,490 cP

Very viscous, used in pharmaceuticals.

Honey
10,000 cP

Extremely viscous, slow flow.

Air (20°C)
0.018 cP

Low viscosity, gas phase.

Motor Oil (SAE 30)
150 cSt

Typical automotive lubricant.

Viscosity Applications

Lubrication
Motor Oil

Engine oils, gear oils, hydraulic fluids.

Food Industry
Honey, Syrup

Quality control for food texture and flow.

Pharmaceuticals
Glycerin

Drug formulation and delivery systems.

Paints & Coatings
Latex, Oil

Flow and spreadability of paints.

Polymer Processing
Molten Plastic

Extrusion and molding of plastics.

Viscosity Calculators

Dynamic to Kinematic

Kinematic to Dynamic

Reference Table

Unit Relationships: 1 Pa·s = 1000 cP = 10 P. 1 St = 100 cSt = 1 mm²/s = 10⁻⁴ m²/s. Dynamic viscosity (μ) = Kinematic viscosity (ν) × Density (ρ).
Water (20°C)
μ = 1.002 cP, ν = 1.004 mm²/s

Reference values for calculations.

Olive Oil
μ = 84 cP, ν = 90 mm²/s

Typical food oil.

Glycerin
μ = 1,490 cP, ν = 1,170 mm²/s

High viscosity, pharmaceutical use.

Honey
μ = 10,000 cP, ν = 7,000 mm²/s

Very high viscosity.