Prandtl Number Calculator
Free calculate prandtl number from kinematic viscosity and thermal diffusivity, or from dynamic viscosity, specific heat, and thermal conductivity.
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Prandtl Number Formula
From Viscosity & Diffusivity
Pr = ν / α
Where:
- • Pr = Prandtl number
- • ν = kinematic viscosity (m²/s)
- • α = thermal diffusivity (m²/s)
From Properties
Pr = (μ × c_p) / k
Where:
- • μ = dynamic viscosity (Pa·s)
- • c_p = specific heat (J/(kg·K))
- • k = thermal conductivity (W/(m·K))