Convert Watt per square centimetre to International table BTU per second per square foot
Convert Watt per square centimetre (W/cm²) to International table BTU per second per square foot (BTU(IT)/(s·ft²)) instantly and accurately.
Conversion Formula
BTU(IT)/(s·ft²) = W/cm² × 0.8805509184
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.
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.
Quick Reference Table
| Watt per square centimetre (W/cm²) | International table BTU per second per square foot (BTU(IT)/(s·ft²)) |
|---|---|
| 1 W/cm² | 0.880551 BTU(IT)/(s·ft²) |
| 2 W/cm² | 1.7611 BTU(IT)/(s·ft²) |
| 5 W/cm² | 4.40275 BTU(IT)/(s·ft²) |
| 10 W/cm² | 8.80551 BTU(IT)/(s·ft²) |
| 25 W/cm² | 22.0138 BTU(IT)/(s·ft²) |
| 50 W/cm² | 44.0275 BTU(IT)/(s·ft²) |
| 100 W/cm² | 88.0551 BTU(IT)/(s·ft²) |