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Heat Transfer

BTU/(hr·ft·°F)toW/(cm·K)

Convert British thermal units per hour-foot-Fahrenheit (BTU/(hr·ft·°F)) to watts per centimetre-kelvin (W/(cm·K)).

Factor1 BTU/(hr·ft·°F) = 0.01730735 W/(cm·K)

Converter

BTU/(hr·ft·°F)

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

Result
1.73073W/(cm·K)

Rendered to 6 significant figures.

Formula

Formula
W/(cm·K) = BTU/(hr·ft·°F) × 0.01730735

Multiply any value in British thermal units per hour-foot-Fahrenheit by 0.01730735 to obtain the value in watts per centimetre-kelvin.

Worked example

Convert 100 BTU/(hr·ft·°F) to W/(cm·K).

  1. 01Start with 100 BTU/(hr·ft·°F).
  2. 02Multiply by the conversion factor: 100 × 0.01730735 = 1.73073 W/(cm·K).
Result100 BTU/(hr·ft·°F) = 1.73073 W/(cm·K)

Conversion table

BTU/(hr·ft·°F)W/(cm·K)
10.017307
20.034615
50.086537
100.17307
200.34615
500.86537
1001.7307
2003.4615
5008.6537
100017.307

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from BTU/(hr·ft·°F) to W/(cm·K)?
1 BTU/(hr·ft·°F) equals 0.01730735 W/(cm·K). To convert, multiply the value in British thermal units per hour-foot-Fahrenheit by 0.01730735.
How do I convert 1 BTU/(hr·ft·°F) to W/(cm·K)?
1 BTU/(hr·ft·°F) = 0.0173073 W/(cm·K). For any value, multiply by 0.01730735.
How do I convert W/(cm·K) back to BTU/(hr·ft·°F)?
Divide by the same factor — or equivalently, multiply by 57.77893. So 1 W/(cm·K) = 57.7789 BTU/(hr·ft·°F).
When would I need to convert British thermal unit per hour-foot-Fahrenheit to watt per centimetre-kelvin?
Thermal conductivity conversions between BTU/(hr·ft·°F) and W/(cm·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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