Convert International table BTU per hour per square foot per degree Fahrenheit to International table calorie per second per square centimetre per degree Celsius

Convert International table BTU per hour per square foot per degree Fahrenheit (BTU(IT)/(h·ft²·°F)) to International table calorie per second per square centimetre per degree Celsius (cal(IT)/(s·cm²·°C)) instantly and accurately.

International table BTU per hour per square foot per degree Fahrenheit (BTU(IT)/(h·ft²·°F))
International table calorie per second per square centimetre per degree Celsius (cal(IT)/(s·cm²·°C))

Conversion Formula

cal(IT)/(s·cm²·°C) = BTU(IT)/(h·ft²·°F) × 0.0001356229899

About International table BTU per hour per square foot per degree Fahrenheit

The international table BTU per hour per square foot per degree Fahrenheit (BTU(IT)/(h·ft²·°F)) equals 1055.05585262/(3600×0.09290304×5/9) ≈ 5.6783 W/(m²·K). The dominant heat transfer coefficient unit in US engineering: ASHRAE handbooks, ASTM standards, boiler and heat exchanger design, and building envelope U-values are all commonly tabulated in this unit. 1 BTU(IT)/(h·ft²·°F) ≈ 5.6783 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

International table BTU per hour per square foot per degree Fahrenheit (BTU(IT)/(h·ft²·°F))International table calorie per second per square centimetre per degree Celsius (cal(IT)/(s·cm²·°C))
1 BTU(IT)/(h·ft²·°F)0.000135623 cal(IT)/(s·cm²·°C)
2 BTU(IT)/(h·ft²·°F)0.000271246 cal(IT)/(s·cm²·°C)
5 BTU(IT)/(h·ft²·°F)0.000678115 cal(IT)/(s·cm²·°C)
10 BTU(IT)/(h·ft²·°F)0.00135623 cal(IT)/(s·cm²·°C)
25 BTU(IT)/(h·ft²·°F)0.00339057 cal(IT)/(s·cm²·°C)
50 BTU(IT)/(h·ft²·°F)0.00678115 cal(IT)/(s·cm²·°C)
100 BTU(IT)/(h·ft²·°F)0.0135623 cal(IT)/(s·cm²·°C)

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