Thermal Diffusivity Calculator
Compute α from thermal conductivity, density, and specific heat.
How to Use This Calculator
Enter material thermal conductivity, density, and specific heat. The result shows how fast heat diffuses through the material.
Formula
α = k / (ρ c)
About Thermal Diffusivity
Materials with high α respond quickly to temperature changes; low α materials are more insulating or have greater thermal inertia.
Frequently Asked Questions
Units check
Ensure k in W/m·K, ρ in kg/m³, c in J/kg·K; α will be in m²/s.
Temperature dependence?
k and c can vary with temperature; this calculator assumes constants.