Convert International table BTU per second per square foot to Kilowatt per square metre
Convert International table BTU per second per square foot (BTU(IT)/(s·ft²)) to Kilowatt per square metre (kW/m²) instantly and accurately.
Conversion Formula
kW/m² = BTU(IT)/(s·ft²) × 11.35652668
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 Kilowatt per square metre
The kilowatt per square metre (kW/m²) equals exactly 1000 W/m². Standard for concentrated solar collectors (parabolic trough ≈ 20-80 kW/m² at focus), industrial infrared heaters, and induction heating surfaces. 1 kW/m² = 1000 W/m² = 0.1 W/cm² = 100 mW/cm².
Quick Reference Table
| International table BTU per second per square foot (BTU(IT)/(s·ft²)) | Kilowatt per square metre (kW/m²) |
|---|---|
| 1 BTU(IT)/(s·ft²) | 11.3565 kW/m² |
| 2 BTU(IT)/(s·ft²) | 22.7131 kW/m² |
| 5 BTU(IT)/(s·ft²) | 56.7826 kW/m² |
| 10 BTU(IT)/(s·ft²) | 113.565 kW/m² |
| 25 BTU(IT)/(s·ft²) | 283.913 kW/m² |
| 50 BTU(IT)/(s·ft²) | 567.826 kW/m² |
| 100 BTU(IT)/(s·ft²) | 1135.65 kW/m² |