Thermal Conductivity Converter
Convert between various units of thermal conductivity (e.g., W/(m·K), Btu·in/(h·ft²·°F)).
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Understanding Thermal Conductivity
Thermal conductivity (k, λ, or κ) is an intrinsic property of a material that describes its ability to conduct heat. It is quantified as the rate of heat transfer through a unit thickness of the material per unit area per unit temperature difference.
Formula: q = -k * A * (dT/dx), where q is heat flow rate, A is area, dT/dx is temperature gradient.
The SI unit for thermal conductivity is Watts per meter-Kelvin (W/(m·K)).
| Material | k (W/(m·K)) | k (Btu·in/(h·ft²·°F)) |
|---|---|---|
| Silver | 429 | 2975 |
| Copper | 401 | 2780 |
| Aluminum | 237 | 1643 |
| Steel (Carbon) | ~50 | ~347 |
| Glass (Common) | ~1.0 | ~6.9 |
| Water (Liquid) | 0.6 | 4.16 |
| Wood (Pine) | 0.12 | 0.83 |
| Air (Gas) | 0.026 | 0.18 |