Viscosity Converter
Convert viscosity between units instantly. Includes conversion tables, common equivalents, and calculation formulas.
Formula
kinematic = dynamic / density | converted = value x (fromFactor / toFactor)
Dynamic viscosity measures resistance to flow (Pa\u00B7s). Kinematic viscosity equals dynamic viscosity divided by density (m\u00B2/s). Unit conversion multiplies by the ratio of source to target conversion factors.
Worked Examples
Example 1: Motor Oil Conversion
Problem: Convert SAE 30 motor oil viscosity of 200 cP to Pa\u00B7s.
Solution: 200 cP x 0.001 = 0.2 Pa\u00B7s
Result: 200 cP = 0.2 Pa\u00B7s
Example 2: Kinematic Viscosity Conversion
Problem: Convert 100 cSt to m\u00B2/s.
Solution: 100 cSt x 1e-6 = 1.0 x 10^-4 m\u00B2/s
Result: 100 cSt = 1.0 x 10^-4 m\u00B2/s
Frequently Asked Questions
What is the difference between dynamic and kinematic viscosity?
Dynamic viscosity (also called absolute viscosity) measures a fluid's internal resistance to flow when an external force is applied, with SI units of Pascal-seconds (Pa·s). Kinematic viscosity is the ratio of dynamic viscosity to fluid density, with SI units of m²/s. The relationship is: kinematic viscosity = dynamic viscosity / density. Water at 20 degrees Celsius has a dynamic viscosity of about 0.001 Pa·s and kinematic viscosity of about 1.004 x 10^-6 m²/s.
How does temperature affect viscosity?
Temperature has a significant effect on viscosity. For liquids, viscosity decreases as temperature increases because higher thermal energy allows molecules to move past each other more easily. For gases, viscosity increases with temperature because faster-moving molecules transfer more momentum between layers. Motor oil viscosity, for example, can drop by 80% or more when heated from 0 to 100 degrees Celsius.
What formula does Viscosity Converter use?
The formula used is described in the Formula section on this page. It is based on widely accepted standards in the relevant field. If you need a specific reference or citation, the References section provides links to authoritative sources.
Is Viscosity Converter free to use?
Yes, completely free with no sign-up required. All calculators on NovaCalculator are free to use without registration, subscription, or payment.
Can I use the results for professional or academic purposes?
You may use the results for reference and educational purposes. For professional reports, academic papers, or critical decisions, we recommend verifying outputs against peer-reviewed sources or consulting a qualified expert in the relevant field.
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