Convert Thermochemical kilocalorie per hour per square centimetre to International table BTU per hour per square foot
Convert Thermochemical kilocalorie per hour per square centimetre (kcal(th)/(h·cm²)) to International table BTU per hour per square foot (BTU(IT)/(h·ft²)) instantly and accurately.
Conversion Formula
BTU(IT)/(h·ft²) = kcal(th)/(h·cm²) × 3684.225043
About Thermochemical kilocalorie per hour per square centimetre
The thermochemical kilocalorie per hour per square centimetre (kcal(th)/(h·cm²)) equals 4184/(3600×10⁻⁴) ≈ 11622 W/m² (= 10⁴ × kcal(th)/(h·m²)). A high-flux variant of the metric heat flux unit found in older combustion engineering and furnace design references. 1 kcal(th)/(h·cm²) ≈ 11622 W/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
| Thermochemical kilocalorie per hour per square centimetre (kcal(th)/(h·cm²)) | International table BTU per hour per square foot (BTU(IT)/(h·ft²)) |
|---|---|
| 1 kcal(th)/(h·cm²) | 3684.23 BTU(IT)/(h·ft²) |
| 2 kcal(th)/(h·cm²) | 7368.45 BTU(IT)/(h·ft²) |
| 5 kcal(th)/(h·cm²) | 18421.1 BTU(IT)/(h·ft²) |
| 10 kcal(th)/(h·cm²) | 36842.3 BTU(IT)/(h·ft²) |
| 25 kcal(th)/(h·cm²) | 92105.6 BTU(IT)/(h·ft²) |
| 50 kcal(th)/(h·cm²) | 184211 BTU(IT)/(h·ft²) |
| 100 kcal(th)/(h·cm²) | 368423 BTU(IT)/(h·ft²) |