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BTU/(s⋅ft2⋅∘F)\text{BTU/(s}{\cdot}\text{ft}^{2}{\cdot}^{\circ}\text{F)}

BTU per second square foot Fahrenheit

Heat transfer coefficientexact by definition

The BTU per second square foot Fahrenheit is 20441.74879 W/(m²·K), 3600 times the familiar hourly US unit. It belongs to aerothermodynamics and short-duration heating, where per-hour numbers would be absurd: re-entry and rocket nozzle heat transfer are worked per second.

1 BTU/(s⋅ft2⋅∘F)\text{BTU/(s}{\cdot}\text{ft}^{2}{\cdot}^{\circ}\text{F)} 20,441.748 W/(m2⋅K)\text{W/(m}^{2}{\cdot}\text{K)}

One btu per second square foot fahrenheit in every heat transfer coefficient unit

20,441.7watt per square meter kelvin (W/(m²·K))
20,441.7watt per square meter Celsius (W/(m²·°C))
17,588.5kilocalorie per hour square meter Celsius (kcal/(h·m²·°C))
3,600BTU per hour square foot Fahrenheit (BTU/(h·ft²·°F))
20.4417kilowatt per square meter kelvin (kW/(m²·K))
2.04417watt per square centimeter kelvin (W/(cm²·K))
1BTU per second square foot Fahrenheit (BTU/(s·ft²·°F))this unit
0.48857calorie per second square centimeter Celsius (cal/(s·cm²·°C))
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formula.expert. (n.d.). BTU per second square foot Fahrenheit (BTU/(s·ft²·°F)): definition & conversion. https://formula.expert/units/btu-per-second-square-foot-fahrenheit