▸ processconvert
Heat Transfer

BTU/(hr·ft·°F)tomW/(m·K)

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

Factor1 BTU/(hr·ft·°F) = 1730.735 mW/(m·K)

Converter

BTU/(hr·ft·°F)

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

Result
1730.73mW/(m·K)

Rendered to 6 significant figures.

Formula

Formula
mW/(m·K) = BTU/(hr·ft·°F) × 1730.735

Multiply any value in British thermal units per hour-foot-Fahrenheit by 1730.735 to obtain the value in milliwatts per metre-kelvin.

Worked example

Convert 1 BTU/(hr·ft·°F) to mW/(m·K).

  1. 01Start with 1 BTU/(hr·ft·°F).
  2. 02Multiply by the conversion factor: 1 × 1730.735 = 1730.73 mW/(m·K).
Result1 BTU/(hr·ft·°F) = 1730.73 mW/(m·K)

Conversion table

BTU/(hr·ft·°F)mW/(m·K)
11730.7
23461.5
58653.7
1017307
2034615
5086537
1001.7307e+5
2003.4615e+5
5008.6537e+5
10001.7307e+6

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from BTU/(hr·ft·°F) to mW/(m·K)?
1 BTU/(hr·ft·°F) equals 1730.735 mW/(m·K). To convert, multiply the value in British thermal units per hour-foot-Fahrenheit by 1730.735.
How do I convert 1 BTU/(hr·ft·°F) to mW/(m·K)?
1 BTU/(hr·ft·°F) = 1730.73 mW/(m·K). For any value, multiply by 1730.735.
How do I convert mW/(m·K) back to BTU/(hr·ft·°F)?
Divide by the same factor — or equivalently, multiply by 0.0005777893. So 1 mW/(m·K) = 0.000577789 BTU/(hr·ft·°F).
When would I need to convert British thermal unit per hour-foot-Fahrenheit to milliwatt per metre-kelvin?
Thermal conductivity conversions between BTU/(hr·ft·°F) and mW/(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).

Related conversions