Watt per Square Inch to BTU (th) per Hour per Square Foot Conversion
Convert between Watt per Square Inch and BTU (th) per Hour per Square Foot quickly and accurately.
How to Convert Watt per Square Inch to BTU (th) per Hour per Square Foot
Conversion Formula
Example
Convert 15 W/in² to Btu/(h·ft²):
Unit Information
Learn about the heat flux density units you're converting between
Watt per Square Inch
W/in²
Definition
The watt per square inch (W/in²) is an imperial unit of heat flux density equal to approximately 1,550 watts per square meter. It represents the rate of heat energy transfer per unit area, commonly used in thermal engineering applications in the United States where imperial units are preferred.
History/Origin
Developed as part of the imperial system for heat flux density measurements, this unit became standard in the United States for thermal engineering and materials science applications. It provides a practical measure for heat flux density using familiar imperial units.
Current Use
Commonly used in thermal engineering, materials science, and HVAC applications in the United States where imperial units are preferred. It is essential for calculating heat transfer rates, designing thermal management systems, and analyzing thermal properties in imperial unit systems.
Multiplier
1550.003
Offset
0
BTU (th) per Hour per Square Foot
Btu/(h·ft²)
Definition
The BTU (th) per hour per square foot (Btu/(h·ft²)) is an imperial unit of heat flux density equal to approximately 3.152 watts per square meter. It represents the rate of heat energy transfer per unit area, commonly used in specialized thermochemical applications where hour time units are preferred.
History/Origin
Developed for specialized thermochemical applications where hour time units are preferred, this unit became standard in thermochemical building thermal analysis and specialized HVAC system design. It provides a precise measure for heat flux density using thermochemical BTU and hour units.
Current Use
Used in specialized thermochemical applications, thermochemical building thermal analysis, and research contexts where thermochemical BTU and hour units are specified. It is essential for precise thermochemical calculations, specialized analysis, and specialized thermochemical applications.
Multiplier
3.152
Offset
0
Watt per Square Inch to BTU (th) per Hour per Square Foot Conversion Table
| Watt per Square Inch [W/in²] | BTU (th) per Hour per Square Foot [Btu/(h·ft²)] |
|---|---|
| 1 W/in² | 491.677214 Btu/(h·ft²) |
| 10 W/in² | 4916.772138 Btu/(h·ft²) |
| 25 W/in² | 12291.930345 Btu/(h·ft²) |
| 50 W/in² | 24583.86069 Btu/(h·ft²) |
| 100 W/in² | 49167.721379 Btu/(h·ft²) |
| 0 W/in² | 0E+0 Btu/(h·ft²) |
| -10 W/in² | -4916.772138 Btu/(h·ft²) |
| -40 W/in² | -19667.088552 Btu/(h·ft²) |
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