Convert Thermochemical kilocalorie per hour per square metre per degree Celsius to International table kilocalorie per hour per square metre per degree Celsius
Convert Thermochemical kilocalorie per hour per square metre per degree Celsius (kcal(th)/(h·m²·°C)) to International table kilocalorie per hour per square metre per degree Celsius (kcal(IT)/(h·m²·°C)) instantly and accurately.
Conversion Formula
kcal(IT)/(h·m²·°C) = kcal(th)/(h·m²·°C) × 0.9993312315
About Thermochemical kilocalorie per hour per square metre per degree Celsius
The thermochemical kilocalorie per hour per square metre per degree Celsius (kcal(th)/(h·m²·°C)) equals 4184/3600 ≈ 1.1622 W/(m²·K) (1 kcal(th) = 4184 J; 1 °C = 1 K). Widely used in continental European and Soviet-era building physics, HVAC standards, and heat exchanger design manuals where wall U-values were tabulated in this unit. 1 kcal(th)/(h·m²·°C) ≈ 1.1622 W/(m²·K).
About International table kilocalorie per hour per square metre per degree Celsius
The international table kilocalorie per hour per square metre per degree Celsius (kcal(IT)/(h·m²·°C)) equals 4186.8/3600 ≈ 1.1633 W/(m²·K) (1 kcal(IT) = 4186.8 J). The IT variant used in steam turbine, power plant, and process industry engineering. Numerically slightly larger than the thermochemical counterpart. 1 kcal(IT)/(h·m²·°C) ≈ 1.1633 W/(m²·K).
Quick Reference Table
| Thermochemical kilocalorie per hour per square metre per degree Celsius (kcal(th)/(h·m²·°C)) | International table kilocalorie per hour per square metre per degree Celsius (kcal(IT)/(h·m²·°C)) |
|---|---|
| 1 kcal(th)/(h·m²·°C) | 0.999331 kcal(IT)/(h·m²·°C) |
| 2 kcal(th)/(h·m²·°C) | 1.99866 kcal(IT)/(h·m²·°C) |
| 5 kcal(th)/(h·m²·°C) | 4.99666 kcal(IT)/(h·m²·°C) |
| 10 kcal(th)/(h·m²·°C) | 9.99331 kcal(IT)/(h·m²·°C) |
| 25 kcal(th)/(h·m²·°C) | 24.9833 kcal(IT)/(h·m²·°C) |
| 50 kcal(th)/(h·m²·°C) | 49.9666 kcal(IT)/(h·m²·°C) |
| 100 kcal(th)/(h·m²·°C) | 99.9331 kcal(IT)/(h·m²·°C) |