Convert Watt per square centimetre to International table BTU per hour per square foot
Convert Watt per square centimetre (W/cm²) to International table BTU per hour per square foot (BTU(IT)/(h·ft²)) instantly and accurately.
Conversion Formula
BTU(IT)/(h·ft²) = W/cm² × 3169.983306
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 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.
Quick Reference Table
| Watt per square centimetre (W/cm²) | International table BTU per hour per square foot (BTU(IT)/(h·ft²)) |
|---|---|
| 1 W/cm² | 3169.98 BTU(IT)/(h·ft²) |
| 2 W/cm² | 6339.97 BTU(IT)/(h·ft²) |
| 5 W/cm² | 15849.9 BTU(IT)/(h·ft²) |
| 10 W/cm² | 31699.8 BTU(IT)/(h·ft²) |
| 25 W/cm² | 79249.6 BTU(IT)/(h·ft²) |
| 50 W/cm² | 158499 BTU(IT)/(h·ft²) |
| 100 W/cm² | 316998 BTU(IT)/(h·ft²) |