Convert International table BTU per hour per square foot to International table BTU per hour per square inch
Convert International table BTU per hour per square foot (BTU(IT)/(h·ft²)) to International table BTU per hour per square inch (BTU(IT)/(h·in²)) instantly and accurately.
Conversion Formula
BTU(IT)/(h·in²) = BTU(IT)/(h·ft²) × 0.006944444444
About International table BTU per hour per square foot
The international table BTU per hour per square foot (BTU(IT)/(h·ft²)) equals 1055.05585262/(3600×0.09290304) ≈ 3.15459 W/m². The standard US heat flux unit in ASHRAE, ASTM, and building codes for thermal resistance (R-value), boiler ratings, and heat exchanger design. 1 BTU(IT)/(h·ft²) ≈ 3.15459 W/m².
About International table BTU per hour per square inch
The international table BTU per hour per square inch (BTU(IT)/(h·in²)) equals 1055.05585262/(3600×6.4516×10⁻⁴) ≈ 454.26 W/m². Used for high heat flux applications such as electronic component cooling, jet engine combustor walls, and nuclear fuel assembly design in US customary units. 1 BTU(IT)/(h·in²) ≈ 454.26 W/m².
Quick Reference Table
| International table BTU per hour per square foot (BTU(IT)/(h·ft²)) | International table BTU per hour per square inch (BTU(IT)/(h·in²)) |
|---|---|
| 1 BTU(IT)/(h·ft²) | 0.00694444 BTU(IT)/(h·in²) |
| 2 BTU(IT)/(h·ft²) | 0.0138889 BTU(IT)/(h·in²) |
| 5 BTU(IT)/(h·ft²) | 0.0347222 BTU(IT)/(h·in²) |
| 10 BTU(IT)/(h·ft²) | 0.0694444 BTU(IT)/(h·in²) |
| 25 BTU(IT)/(h·ft²) | 0.173611 BTU(IT)/(h·in²) |
| 50 BTU(IT)/(h·ft²) | 0.347222 BTU(IT)/(h·in²) |
| 100 BTU(IT)/(h·ft²) | 0.694444 BTU(IT)/(h·in²) |