Convert RSI (m²·K/W) to m²·h·°C/kcal
1 square metre kelvin per watt (m²·K/W) = 1.163 square metre hour degree Celsius per kilocalorie (m²·h·°C/kcal). 1 m²·h·°C/kcal = 0.8598452279 m²·K/W. Example: 15 m²·K/W = 15 × 1.163 = 17.445 m²·h·°C/kcal.
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1 m²·K/W = 1.163 m²·h·°C/kcal
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk RSI to square metre hour degree Celsius per kilocalorie converter to paste a column from Excel.
How to Convert RSI (m²·K/W) to Square Metre Hour Degree Celsius per Kilocalorie
- 1 m²·K/W = 1.163 m²·h·°C/kcal
- 1 m²·h·°C/kcal = 0.8598452279 m²·K/W
- Example: convert 15 m²·K/W to m²·h·°C/kcal: 15 m²·K/W = 15 × 1.163 m²·h·°C/kcal = 17.445 m²·h·°C/kcal
Reference conditions. m²·h·°C/kcal: International Table kilocalorie (4186.8 J).
Formula
m²·h·°C/kcal = m²·K/W × 1.163
Derivation from SI units:
- Thermal resistance per unit area R = thickness ÷ conductivity, in m²·K/W; U = 1/ΣR.
- 1 m²·h·°C/kcal_IT = 3600 s ÷ 4186.8 J × m²·K ≈ 0.85985 m²·K/W.
Both units are defined exactly, so the factor is exact. RSI (m²·K/W) definition: square metre kelvin per watt; Square Metre Hour Degree Celsius per Kilocalorie definition: square metre hour degree Celsius per kilocalorie.
Worked examples
- A reading of 1.5 m²·K/W converts to 1.7445 m²·h·°C/kcal.
1.5 m²·K/W × 1.163 = 1.7445 m²·h·°C/kcal - A value of 3 m²·K/W is 3.489 m²·h·°C/kcal.
3 m²·K/W × 1.163 = 3.489 m²·h·°C/kcal
RSI (m²·K/W) to Square Metre Hour Degree Celsius per Kilocalorie conversion table
| RSI (m²·K/W) (m²·K/W) | Square Metre Hour Degree Celsius per Kilocalorie (m²·h·°C/kcal) |
|---|---|
| 0.1 m²·K/W | 0.1163 m²·h·°C/kcal |
| 0.5 m²·K/W | 0.5815 m²·h·°C/kcal |
| 1 m²·K/W | 1.163 m²·h·°C/kcal |
| 1.5 m²·K/W | 1.7445 m²·h·°C/kcal |
| 2 m²·K/W | 2.326 m²·h·°C/kcal |
| 2.5 m²·K/W | 2.9075 m²·h·°C/kcal |
| 3 m²·K/W | 3.489 m²·h·°C/kcal |
| 4 m²·K/W | 4.652 m²·h·°C/kcal |
| 5 m²·K/W | 5.815 m²·h·°C/kcal |
| 7 m²·K/W | 8.141 m²·h·°C/kcal |
Where it's used
RSI (m²·K/W) are used for building envelope design (ECBC, Part L, EN ISO 6946), while square metre hour degree Celsius per kilocalorie appear in older building-physics texts and IS codes. Both measure thermal resistance per unit area (insulation R-value), so the conversion is a fixed factor.
RSI (m²·K/W) to other thermal resistance (r-value) units
| Conversion | 1 m²·K/W equals |
|---|---|
| RSI to square metre hour degree Celsius per kilocalorie | 1.163 m²·h·°C/kcal |
| RSI to R (US) | 5.678263341 ft²·°F·h/BTU |
| RSI to clo | 6.451612903 clo |
| RSI to tog | 10 tog |
Frequently asked questions
How many square metre hour degree Celsius per kilocalorie are in 1 square metre kelvin per watt?
1 m²·K/W = 1.163 m²·h·°C/kcal.
How do I convert square metre kelvin per watt to square metre hour degree Celsius per kilocalorie?
Multiply the value in m²·K/W by 1.163. For example, 15 m²·K/W × 1.163 = 17.445 m²·h·°C/kcal.
Is the m²·K/W to m²·h·°C/kcal conversion exact?
Yes. Both units are defined exactly, and 1 m²·K/W is exactly 1.163 m²·h·°C/kcal.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 4 (derived units with special names).
- 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, "calorie_IT".
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 RSI (m²·K/W) to m²·h·°C/kcal. Retrieved October 29, 2026, from https://scientificconverters.com/thermal-resistance/rsi-to-square-meter-hour-celsius-per-kilocalorie/
IEEE
Scientific Converters, "Convert RSI (m²·K/W) to m²·h·°C/kcal," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/thermal-resistance/rsi-to-square-meter-hour-celsius-per-kilocalorie/