Square Metre Hour Degree Celsius per Kilocalorie (m²·h·°C/kcal)
Square metre hour degree Celsius per kilocalorie is the old MKS unit of thermal resistance found in pre-SI Indian and European building texts.
Symbol: m²·h·°C/kcal (ASCII: m2 h C/kcal)
Quantity: thermal resistance per unit area (insulation R-value)
SI relation: 1 m²·h·°C/kcal = 0.859845227859 m²·K/W (exact)
Derivation: 1 m²·h·°C/kcal_IT = 3600 s ÷ 4186.8 J × m²·K ≈ 0.85985 m²·K/W.
Exact: yes, by definition
Reference conditions. International Table kilocalorie (4186.8 J).
Typical uses
- Older building-physics texts and IS codes
Convert square metre hour degree Celsius per kilocalorie to other units
| Conversion | 1 m²·h·°C/kcal equals | Reverse |
|---|---|---|
| square metre hour degree Celsius per kilocalorie to RSI | 0.8598452279 m²·K/W | RSI to square metre hour degree Celsius per kilocalorie |
| square metre hour degree Celsius per kilocalorie to R (US) | 4.882427636 ft²·°F·h/BTU | R (US) to square metre hour degree Celsius per kilocalorie |
| square metre hour degree Celsius per kilocalorie to clo | 5.547388567 clo | clo to square metre hour degree Celsius per kilocalorie |
| square metre hour degree Celsius per kilocalorie to tog | 8.598452279 tog | tog to square metre hour degree Celsius per kilocalorie |
Open the R-Value Converter (US R to RSI, m²·K/W) to convert any value between all units.
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, "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). Square Metre Hour Degree Celsius per Kilocalorie (m²·h·°C/kcal). Retrieved October 29, 2026, from https://scientificconverters.com/units/square-meter-hour-celsius-per-kilocalorie/
IEEE
Scientific Converters, "Square Metre Hour Degree Celsius per Kilocalorie (m²·h·°C/kcal)," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/units/square-meter-hour-celsius-per-kilocalorie/