Convert International table BTU per hour per square inch to Watt per square inch
Convert International table BTU per hour per square inch (BTU(IT)/(h·in²)) to Watt per square inch (W/in²) instantly and accurately.
Conversion Formula
W/in² = BTU(IT)/(h·in²) × 0.2930710702
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.
About Watt per square inch
The watt per square inch (W/in²) equals 1/(6.4516×10⁻⁴) ≈ 1550.003 W/m² (1 in = 0.0254 m). Used in US electronics thermal management for PCB power density, semiconductor die heat flux, and power module ratings. 1 W/in² ≈ 1550 W/m² ≈ 0.155 W/cm².
Quick Reference Table
| International table BTU per hour per square inch (BTU(IT)/(h·in²)) | Watt per square inch (W/in²) |
|---|---|
| 1 BTU(IT)/(h·in²) | 0.293071 W/in² |
| 2 BTU(IT)/(h·in²) | 0.586142 W/in² |
| 5 BTU(IT)/(h·in²) | 1.46536 W/in² |
| 10 BTU(IT)/(h·in²) | 2.93071 W/in² |
| 25 BTU(IT)/(h·in²) | 7.32678 W/in² |
| 50 BTU(IT)/(h·in²) | 14.6536 W/in² |
| 100 BTU(IT)/(h·in²) | 29.3071 W/in² |