Convert International table BTU per hour per square foot to Watt per square centimetre
Convert International table BTU per hour per square foot (BTU(IT)/(h·ft²)) to Watt per square centimetre (W/cm²) instantly and accurately.
Conversion Formula
W/cm² = BTU(IT)/(h·ft²) × 0.0003154590745
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 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 hour per square foot (BTU(IT)/(h·ft²)) | Watt per square centimetre (W/cm²) |
|---|---|
| 1 BTU(IT)/(h·ft²) | 0.000315459 W/cm² |
| 2 BTU(IT)/(h·ft²) | 0.000630918 W/cm² |
| 5 BTU(IT)/(h·ft²) | 0.0015773 W/cm² |
| 10 BTU(IT)/(h·ft²) | 0.00315459 W/cm² |
| 25 BTU(IT)/(h·ft²) | 0.00788648 W/cm² |
| 50 BTU(IT)/(h·ft²) | 0.015773 W/cm² |
| 100 BTU(IT)/(h·ft²) | 0.0315459 W/cm² |