Use our free Thermal Conductivity Calculator to quickly determine the k-value of any material. Understand how different substances transfer heat, crucial for engineering, insulation design, and material selection. Input your heat flow, material thickness, cross-sectional area, and temperature difference to get instant results for effective heat transfer analysis.
Formula:
The formula for calculating thermal conductivity (k) is derived from Fourier's Law of Heat Conduction, assuming steady-state heat transfer through a flat slab:
k = (Q × L) / (A × ΔT)
Where:
- k = Thermal Conductivity (Watts per meter Kelvin, W/(m·K))
- Q = Heat Flow Rate (Watts, W)
- L = Material Thickness (Meters, m)
- A = Cross-sectional Area (Square Meters, m2)
- ΔT = Temperature Difference across the material (Kelvin or Celsius, K or °C)