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Thermal Conductivity Converter

Convert thermal conductivity: W/(m·K), BTU/(h·ft·°F).

5 units
6 decimals

1 W/(m·K) = 0.577789 BTU/(h·ft·°F)

About the thermal conductivity converter

Convert thermal conductivity between W/(m·K) (SI) and BTU/(h·ft·°F). Thermal conductivity κ describes how readily heat flows through a material — high for metals (copper ≈ 400 W/(m·K)), low for insulators (fiberglass ≈ 0.04 W/(m·K)).

Frequently asked questions

  • How many W/(m·K) is 1 BTU/(h·ft·°F)?

    One BTU/(h·ft·°F) equals approximately 1.7307 W/(m·K).

  • What is the thermal conductivity of water?

    Approximately 0.6 W/(m·K) at room temperature.

  • Is high or low conductivity better for insulation?

    Low. Insulators have low thermal conductivity so they slow heat transfer.

Complete list of thermal conductivity units