Physics

Water Viscosity Calculator

Find the dynamic viscosity of water at a temperature.

Calculated Output

Dynamic viscosity (Pa·s) 0.001

Dynamic viscosity (mPa·s) 1.002

Formula: μ = 2.414×10⁻⁵ · 10^(247.8 ÷ (T − 140))

Step-by-Step Breakdown

1. Values used:

2. Temperature = 20 °C

4. Dynamic viscosity = 0.001Pa·s

5. Dynamic viscosity = 1.002mPa·s

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The math behind it

The Vogel-type formula μ = 2.414×10⁻⁵·10^(247.8/(T−140)) gives viscosity in Pa·s with T in kelvin.

At 20 °C → about 1.0 mPa·s.

Why does viscosity drop with heat?

Warmer molecules move more freely, reducing internal friction.