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Heat Transfer

kcal/(hr·m·K)toW/(m·K)

Convert kilocalories per hour-metre-kelvin (kcal/(hr·m·K)) to watts per metre-kelvin (W/(m·K)).

Factor1 kcal/(hr·m·K) = 1.163 W/(m·K)

Converter

kcal/(hr·m·K)

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

Result
11.63W/(m·K)

Rendered to 6 significant figures.

Formula

Formula
W/(m·K) = kcal/(hr·m·K) × 1.163

Multiply any value in kilocalories per hour-metre-kelvin by 1.163 to obtain the value in watts per metre-kelvin.

Worked example

Convert 10 kcal/(hr·m·K) to W/(m·K).

  1. 01Start with 10 kcal/(hr·m·K).
  2. 02Multiply by the conversion factor: 10 × 1.163 = 11.63 W/(m·K).
Result10 kcal/(hr·m·K) = 11.63 W/(m·K)

Conversion table

kcal/(hr·m·K)W/(m·K)
11.163
22.326
55.815
1011.63
2023.26
5058.15
100116.3
200232.6
500581.5
10001163

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from kcal/(hr·m·K) to W/(m·K)?
1 kcal/(hr·m·K) equals 1.163 W/(m·K). To convert, multiply the value in kilocalories per hour-metre-kelvin by 1.163.
How do I convert 1 kcal/(hr·m·K) to W/(m·K)?
1 kcal/(hr·m·K) = 1.163 W/(m·K). For any value, multiply by 1.163.
How do I convert W/(m·K) back to kcal/(hr·m·K)?
Divide by the same factor — or equivalently, multiply by 0.8598452. So 1 W/(m·K) = 0.859845 kcal/(hr·m·K).
When would I need to convert kilocalorie per hour-metre-kelvin to watt per metre-kelvin?
Thermal conductivity conversions between kcal/(hr·m·K) and W/(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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