Biot Number Calculator

Biot Number Equation

$$ Bi = \frac{ h L_c}{k} $$ where:

Bi = Biot Number (Dimensionless)

h = Heat Transfer Coefficient (W/m²K)

L_c = Characteristic Length (m)

k = Thermal Conductivity (W/mK)

Calculator

Property to Calculate:

Biot Number (Bi):

Heat Transfer Coefficient (h):

Characteristic Length (L_c):

Thermal Conductivity (k):

Equation Assumptions

Assumptions:

The material is isotropic.
The material is homogeneous.
Steady flow conditions.
Negligible radiative heat transfer.