Convert International table calorie per second per square centimetre to International table BTU per second per square foot
Convert International table calorie per second per square centimetre (cal(IT)/(s·cm²)) to International table BTU per second per square foot (BTU(IT)/(s·ft²)) instantly and accurately.
Conversion Formula
BTU(IT)/(s·ft²) = cal(IT)/(s·cm²) × 3.686690585
About International table calorie per second per square centimetre
The international table calorie per second per square centimetre (cal(IT)/(s·cm²)) equals exactly 41868 W/m² (1 cal(IT) = 4.1868 J; 1 cm² = 10⁻⁴ m²). The IT variant of the high-flux CGS unit, slightly larger than the thermochemical counterpart due to the IT calorie definition. 1 cal(IT)/(s·cm²) = 41868 W/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
| International table calorie per second per square centimetre (cal(IT)/(s·cm²)) | International table BTU per second per square foot (BTU(IT)/(s·ft²)) |
|---|---|
| 1 cal(IT)/(s·cm²) | 3.68669 BTU(IT)/(s·ft²) |
| 2 cal(IT)/(s·cm²) | 7.37338 BTU(IT)/(s·ft²) |
| 5 cal(IT)/(s·cm²) | 18.4335 BTU(IT)/(s·ft²) |
| 10 cal(IT)/(s·cm²) | 36.8669 BTU(IT)/(s·ft²) |
| 25 cal(IT)/(s·cm²) | 92.1673 BTU(IT)/(s·ft²) |
| 50 cal(IT)/(s·cm²) | 184.335 BTU(IT)/(s·ft²) |
| 100 cal(IT)/(s·cm²) | 368.669 BTU(IT)/(s·ft²) |