Thermal Diffusivity Calculator
Free calculate thermal diffusivity coefficient and heat diffusion rate. determine thermal diffusivity from thermal conductivity, density, and specific heat capacity.
Input Parameters
Results
Enter parameters to calculate thermal diffusivity
Thermal Diffusivity Formula
Formula
α = k / (ρ × cₚ)
Where:
- • α = thermal diffusivity (m²/s)
- • k = thermal conductivity (W/m·K)
- • ρ = density (kg/m³)
- • cₚ = specific heat capacity (J/kg·K)
Common Values
- • Silver: 1.71 × 10⁻⁴ m²/s
- • Copper: 1.11 × 10⁻⁴ m²/s
- • Aluminum: 9.7 × 10⁻⁵ m²/s
- • Steel: 1.4 × 10⁻⁵ m²/s
- • Water: 1.43 × 10⁻⁷ m²/s