▸ processconvert
Heat Transfer

kcal/(hr·m²·°C)tokJ/(h·m²·K)

Convert kilocalories per hour-square metre-Celsius (kcal/(hr·m²·°C)) to kilojoules per hour-square metre-kelvin (kJ/(h·m²·K)).

Factor1 kcal/(hr·m²·°C) = 4.1868 kJ/(h·m²·K)

Converter

kcal/(hr·m²·°C)

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

Result
4.1868kJ/(h·m²·K)

Rendered to 6 significant figures.

Formula

Formula
kJ/(h·m²·K) = kcal/(hr·m²·°C) × 4.1868

Multiply any value in kilocalories per hour-square metre-Celsius by 4.1868 to obtain the value in kilojoules per hour-square metre-kelvin.

Worked example

Convert 1 kcal/(hr·m²·°C) to kJ/(h·m²·K).

  1. 01Start with 1 kcal/(hr·m²·°C).
  2. 02Multiply by the conversion factor: 1 × 4.1868 = 4.1868 kJ/(h·m²·K).
Result1 kcal/(hr·m²·°C) = 4.1868 kJ/(h·m²·K)

Conversion table

kcal/(hr·m²·°C)kJ/(h·m²·K)
14.1868
28.3736
520.934
1041.868
2083.736
50209.34
100418.68
200837.36
5002093.4
10004186.8

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from kcal/(hr·m²·°C) to kJ/(h·m²·K)?
1 kcal/(hr·m²·°C) equals 4.1868 kJ/(h·m²·K). To convert, multiply the value in kilocalories per hour-square metre-Celsius by 4.1868.
How do I convert 1 kcal/(hr·m²·°C) to kJ/(h·m²·K)?
1 kcal/(hr·m²·°C) = 4.1868 kJ/(h·m²·K). For any value, multiply by 4.1868.
How do I convert kJ/(h·m²·K) back to kcal/(hr·m²·°C)?
Divide by the same factor — or equivalently, multiply by 0.2388459. So 1 kJ/(h·m²·K) = 0.238846 kcal/(hr·m²·°C).
When would I need to convert kilocalorie per hour-square metre-Celsius to kilojoule per hour-square metre-kelvin?
Heat-transfer coefficient conversions between kcal/(hr·m²·°C) and kJ/(h·m²·K) are needed in heat-exchanger sizing, boiler and condenser design, and HVAC calculations. W/(m²·K) is standard in SI engineering, and BTU/(hr·ft²·°F) is common in US heat-exchanger correlations and vendor literature.
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