Skip to main content
CalcStack

Dynamic Viscosity Converter

The Dynamic Viscosity Converter transforms fluid shear resistance values across SI, CGS, and Imperial engineering standards.

Magnitude of dynamic fluid viscosity.

Unit of the viscosity measurement.

Calculated Result
1.0000e-3 Pa·sPa·s

SI Viscosity

Pascal-Seconds (Pa·s)

1.0000e-3

Centipoise (cP / mPa·s)

1.00

Poise (P)

0.010

lbf·s/ft²

2.0885e-5

Calculation Breakdown

  1. Fundamental Equality1 Pa·s = 1,000 cP = 10 Poise = 0.020885 lbf·s/ft² (Water at 20°C is ~1.002 cP = 0.001 Pa·s)
  2. Conversion1 [cp] = 0.00100 Pa·s = 1.00 cP

Viscosity of Common Fluids at 20°C (cP)

Interactive visualization based on your current inputs

Calculated Value
0.02.5k5.0k7.5k10.0kAirWaterMilkOlive OilMotor Oil (SAE 30)Honey

What Is the Dynamic Viscosity Converter?

Dynamic viscosity (μ or η) measures a fluid’s tangential shear resistance against laminar flow deformation.

Water has a baseline viscosity of roughly 1.0 centipoise (cP) at standard room temperature (20°C).

How Does the Dynamic Viscosity Converter Work?

All inputs are unified into SI Pascal-seconds (1 Pa·s = 1,000 cP = 10 P).

The converter displays direct relationships with gravitational English units like lbf·s/ft².

Dynamic Viscosity Converter Formula & Variables

The core mathematical equation utilized by this calculator is expressed as:

1 Pa·s = 10 P = 1,000 cP = 0.020885 lbf·s/ft²

Dynamic viscosity represents internal friction resisting fluid shear flow under applied shear stress.

How to Use the Dynamic Viscosity Converter

  1. Type in your fluid viscosity reading.
  2. Choose the source unit (commonly cP for bench laboratory rheometers).
  3. View corresponding SI and Imperial flow resistance values.

Step-by-Step Example Calculation

Water at 20°C (1 cP)

Input Values:

inputValue:1
sourceUnit:cp
Worked Steps: Pure water at 20°C has a dynamic viscosity of 1.00 cP = 0.0010 Pa·s = 0.010 P.

Understanding Your Result

Gases possess viscosities around 0.01–0.03 cP.

Viscous liquids like syrups, polymers, and greases easily exceed 1,000 to 100,000 cP.

Factors That Affect the Result

  • Temperature: Liquid viscosity drops exponentially as temperature rises; gas viscosity increases.
  • Shear Rate: Non-Newtonian fluids (paints, blood) exhibit shear-thinning or shear-thickening behavior.

When Should You Use This Calculator?

  • Reynolds number calculation and pump head loss pipe sizing.
  • Motor oil, hydraulic fluid, and grease formulation.

Assumptions & Limitations

  • Applies to Newtonian fluids or single shear rate measurements.

Frequently Asked Questions

Calculation Accuracy & Reference Note

Uses standard ISO 80000-4 physical quantities for fluid mechanics.

Related Calculators

Explore more tools and calculators in Conversion Calculators

Density Converter

Convert density across kg/m³, g/cm³, lb/ft³, lb/in³, g/mL, and calculate Specific Gravity relative to water.

Flow Rate Converter

Convert volumetric flow rates between Liters/min (L/min), GPM (US Gallons/min), m³/hour, and Liters/sec.

Pressure Converter

Convert pressure between Pascals (Pa), Kilopascals (kPa), Bar, PSI (pounds/sq in), Atmospheres (atm), and Torr / mmHg.

Length Converter

Convert length and distance between metric and imperial units including meters, feet, inches, kilometers, miles, and yards with exact SI definitions.

Weight & Mass Converter

Convert weight and mass between kilograms, grams, milligrams, pounds, ounces, stone, and metric tons with exact standards.

Temperature Converter

Convert temperatures between Celsius (°C), Fahrenheit (°F), Kelvin (K), and Rankine (°R) with step-by-step thermodynamic formulas.