Convert Thermochemical kilocalorie per hour per square metre per degree Celsius to International table calorie per second per square centimetre per degree Celsius

Convert Thermochemical kilocalorie per hour per square metre per degree Celsius (kcal(th)/(h·m²·°C)) to International table calorie per second per square centimetre per degree Celsius (cal(IT)/(s·cm²·°C)) instantly and accurately.

Thermochemical kilocalorie per hour per square metre per degree Celsius (kcal(th)/(h·m²·°C))
International table calorie per second per square centimetre per degree Celsius (cal(IT)/(s·cm²·°C))

Conversion Formula

cal(IT)/(s·cm²·°C) = kcal(th)/(h·m²·°C) × 2.775920087e-5

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 calorie per second per square centimetre per degree Celsius

The international table calorie per second per square centimetre per degree Celsius (cal(IT)/(s·cm²·°C)) equals exactly 41868 W/(m²·K) (1 cal(IT) = 4.1868 J; 1 cm² = 10⁻⁴ m²; 1 °C = 1 K). Slightly larger than the thermochemical variant; used in IT-based thermophysical property tables for extreme thermal environments such as nuclear and fusion reactor surfaces. 1 cal(IT)/(s·cm²·°C) = 41868 W/(m²·K).

Quick Reference Table

Thermochemical kilocalorie per hour per square metre per degree Celsius (kcal(th)/(h·m²·°C))International table calorie per second per square centimetre per degree Celsius (cal(IT)/(s·cm²·°C))
1 kcal(th)/(h·m²·°C)2.776 × 10-5 cal(IT)/(s·cm²·°C)
2 kcal(th)/(h·m²·°C)5.552 × 10-5 cal(IT)/(s·cm²·°C)
5 kcal(th)/(h·m²·°C)0.000138796 cal(IT)/(s·cm²·°C)
10 kcal(th)/(h·m²·°C)0.000277592 cal(IT)/(s·cm²·°C)
25 kcal(th)/(h·m²·°C)0.00069398 cal(IT)/(s·cm²·°C)
50 kcal(th)/(h·m²·°C)0.00138796 cal(IT)/(s·cm²·°C)
100 kcal(th)/(h·m²·°C)0.00277592 cal(IT)/(s·cm²·°C)

→ Full Heat Transfer Coefficient Converter