Convert International table BTU per second per square foot to Watt per square centimetre
Convert International table BTU per second per square foot (BTU(IT)/(s·ft²)) to Watt per square centimetre (W/cm²) instantly and accurately.
Conversion Formula
W/cm² = BTU(IT)/(s·ft²) × 1.135652668
About International table BTU per second per square foot
The international table BTU per second per square foot (BTU(IT)/(s·ft²)) equals 1055.05585262/0.09290304 ≈ 11357 W/m² (= 3600 × BTU(IT)/(h·ft²)). Used for extreme heat flux: atmospheric re-entry aerodynamic heating, solid rocket nozzle throat, and nuclear reactor thermal hydraulics design. 1 BTU(IT)/(s·ft²) ≈ 11357 W/m².
About Watt per square centimetre
The watt per square centimetre (W/cm²) equals exactly 10⁴ W/m². A practical unit in laser physics, plasma engineering, and nuclear thermal hydraulics. Nuclear fuel cladding heat flux ≈ 1-5 W/cm²; laser diodes ≈ 10-100 W/cm²; focused CO₂ laser cutting ≈ 10⁴ W/cm². 1 W/cm² = 10⁴ W/m² = 10 kW/m².
Quick Reference Table
| International table BTU per second per square foot (BTU(IT)/(s·ft²)) | Watt per square centimetre (W/cm²) |
|---|---|
| 1 BTU(IT)/(s·ft²) | 1.13565 W/cm² |
| 2 BTU(IT)/(s·ft²) | 2.27131 W/cm² |
| 5 BTU(IT)/(s·ft²) | 5.67826 W/cm² |
| 10 BTU(IT)/(s·ft²) | 11.3565 W/cm² |
| 25 BTU(IT)/(s·ft²) | 28.3913 W/cm² |
| 50 BTU(IT)/(s·ft²) | 56.7826 W/cm² |
| 100 BTU(IT)/(s·ft²) | 113.565 W/cm² |