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Heat Transfer

BTU/(hr·ft·°F)tokW/(m·K)

Convert British thermal units per hour-foot-Fahrenheit (BTU/(hr·ft·°F)) to kilowatts per metre-kelvin (kW/(m·K)).

Factor1 BTU/(hr·ft·°F) = 0.001730735 kW/(m·K)

Converter

BTU/(hr·ft·°F)

Accepts numbers or expressions, e.g. 150 + 14.7

Result
1.73073kW/(m·K)

Rendered to 6 significant figures.

Formula

Formula
kW/(m·K) = BTU/(hr·ft·°F) × 0.001730735

Multiply any value in British thermal units per hour-foot-Fahrenheit by 0.001730735 to obtain the value in kilowatts per metre-kelvin.

Worked example

Convert 1000 BTU/(hr·ft·°F) to kW/(m·K).

  1. 01Start with 1000 BTU/(hr·ft·°F).
  2. 02Multiply by the conversion factor: 1000 × 0.001730735 = 1.73073 kW/(m·K).
Result1000 BTU/(hr·ft·°F) = 1.73073 kW/(m·K)

Conversion table

BTU/(hr·ft·°F)kW/(m·K)
10.0017307
20.0034615
50.0086537
100.017307
200.034615
500.086537
1000.17307
2000.34615
5000.86537
10001.7307

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from BTU/(hr·ft·°F) to kW/(m·K)?
1 BTU/(hr·ft·°F) equals 0.001730735 kW/(m·K). To convert, multiply the value in British thermal units per hour-foot-Fahrenheit by 0.001730735.
How do I convert 1 BTU/(hr·ft·°F) to kW/(m·K)?
1 BTU/(hr·ft·°F) = 0.00173073 kW/(m·K). For any value, multiply by 0.001730735.
How do I convert kW/(m·K) back to BTU/(hr·ft·°F)?
Divide by the same factor — or equivalently, multiply by 577.7893. So 1 kW/(m·K) = 577.789 BTU/(hr·ft·°F).
When would I need to convert British thermal unit per hour-foot-Fahrenheit to kilowatt per metre-kelvin?
Thermal conductivity conversions between BTU/(hr·ft·°F) and kW/(m·K) are common in insulation specification, heat-exchanger design, and building-envelope analysis. SI units (W/(m·K)) appear in international standards and simulation tools, while BTU/(hr·ft·°F) is standard in US codes and vendor datasheets.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).

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