Convert kcal/(h·m²·°C) to Watts per Square Metre Kelvin
1 kilocalorie per hour square metre degree Celsius (kcal/(h·m²·°C)) = 1.163 watts per square metre kelvin (W/(m²·K)). 1 W/(m²·K) = 0.8598452279 kcal/(h·m²·°C). Example: 1000 kcal/(h·m²·°C) = 1000 × 1.163 = 1163 W/(m²·K).
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1 kcal/(h·m²·°C) = 1.163 W/(m²·K)
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk kilocalorie per hour square metre degree Celsius to watt per square metre kelvin converter to paste a column from Excel.
How to Convert kcal/(h·m²·°C) to Watt per Square Metre Kelvin
- 1 kcal/(h·m²·°C) = 1.163 W/(m²·K)
- 1 W/(m²·K) = 0.8598452279 kcal/(h·m²·°C)
- Example: convert 1000 kcal/(h·m²·°C) to W/(m²·K): 1000 kcal/(h·m²·°C) = 1000 × 1.163 W/(m²·K) = 1163 W/(m²·K)
Reference conditions. kcal/(h·m²·°C): International Table kilocalorie (4186.8 J), as used in engineering heat transfer data
Formula
W/(m²·K) = kcal/(h·m²·°C) × 1.163
Derivation from SI units:
- 1 kcal_IT/(h·m²·°C) = 4186.8 J ÷ (3600 s × 1 m² × 1 K) = 1.163 W/(m²·K) (exact)
- The SI unit of heat transfer coefficient and thermal transmittance (U-value): heat flow (W) per square metre per kelvin
Both units are defined exactly, so the factor is exact. kcal/(h·m²·°C) definition: kilocalorie per hour square metre degree Celsius; Watt per Square Metre Kelvin definition: watt per square metre kelvin.
Worked examples
- A heat exchanger with U = 1000 kcal/(h·m²·°C) is 1163 W/(m²·K).
1000 kcal/(h·m²·°C) × 1.163 = 1163 W/(m²·K) - Natural convection at 10 kcal/(h·m²·°C) is 11.63 W/(m²·K).
10 kcal/(h·m²·°C) × 1.163 = 11.63 W/(m²·K)
kcal/(h·m²·°C) to Watt per Square Metre Kelvin conversion table
| kcal/(h·m²·°C) | Watts per Square Metre Kelvin (W/(m²·K)) |
|---|---|
| 1 kcal/(h·m²·°C) | 1.163 W/(m²·K) |
| 5 kcal/(h·m²·°C) | 5.815 W/(m²·K) |
| 10 kcal/(h·m²·°C) | 11.63 W/(m²·K) |
| 20 kcal/(h·m²·°C) | 23.26 W/(m²·K) |
| 50 kcal/(h·m²·°C) | 58.15 W/(m²·K) |
| 100 kcal/(h·m²·°C) | 116.3 W/(m²·K) |
| 500 kcal/(h·m²·°C) | 581.5 W/(m²·K) |
| 1000 kcal/(h·m²·°C) | 1163 W/(m²·K) |
| 2000 kcal/(h·m²·°C) | 2326 W/(m²·K) |
| 5000 kcal/(h·m²·°C) | 5815 W/(m²·K) |
Where it's used
Heat transfer coefficients in kcal/(h·m²·°C) from older metric data are converted to W/(m²·K). Multiply by exactly 1.163.
kcal/(h·m²·°C) to other heat transfer coefficient units
| Conversion | 1 kcal/(h·m²·°C) equals |
|---|---|
| kilocalorie per hour square metre degree Celsius to watt per square metre kelvin | 1.163 W/(m²·K) |
| kilocalorie per hour square metre degree Celsius to BTU per hour square foot degree Fahrenheit | 0.2048161436 BTU/(h·ft²·°F) |
| kilocalorie per hour square metre degree Celsius to kilowatt per square metre kelvin | 0.001163 kW/(m²·K) |
| kilocalorie per hour square metre degree Celsius to watt per square centimetre kelvin | 0.0001163 W/(cm²·K) |
| kilocalorie per hour square metre degree Celsius to calorie per second square centimetre degree Celsius | 0.00002779636711 cal/(s·cm²·°C) |
Frequently asked questions
How many W/(m²·K) is 1 kcal/(h·m²·°C)?
Exactly 1.163 W/(m²·K), using the International Table kilocalorie.
How many watts per square metre kelvin are in 1 kilocalorie per hour square metre degree Celsius?
1 kcal/(h·m²·°C) = 1.163 W/(m²·K).
How do I convert kilocalories per hour square metre degree Celsius to watts per square metre kelvin?
Multiply the value in kcal/(h·m²·°C) by 1.163. For example, 1000 kcal/(h·m²·°C) × 1.163 = 1163 W/(m²·K).
Is the kcal/(h·m²·°C) to W/(m²·K) conversion exact?
Yes. Both units are defined exactly, and 1 kcal/(h·m²·°C) is exactly 1.163 W/(m²·K).
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "kilocalorie_IT".
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 4, coherent derived units with special names.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert kcal/(h·m²·°C) to Watts per Square Metre Kelvin. Retrieved October 25, 2026, from https://scientificconverters.com/heat-transfer-coefficient/kilocalories-per-hour-square-meter-celsius-to-watts-per-square-meter-kelvin/
IEEE
Scientific Converters, "Convert kcal/(h·m²·°C) to Watts per Square Metre Kelvin," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/heat-transfer-coefficient/kilocalories-per-hour-square-meter-celsius-to-watts-per-square-meter-kelvin/