Convert International table kilocalorie per hour per square centimetre to International table BTU per hour per square foot
Convert International table kilocalorie per hour per square centimetre (kcal(IT)/(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(IT)/(h·cm²) × 3686.690585
About International table kilocalorie per hour per square centimetre
The international table kilocalorie per hour per square centimetre (kcal(IT)/(h·cm²)) equals 4186.8/(3600×10⁻⁴) = 11630 W/m² exactly (1 kcal(IT) = 4186.8 J; 1 h = 3600 s; 1 cm² = 10⁻⁴ m²). Used in IT-based thermodynamics for high heat flux surfaces such as boiler tubes. 1 kcal(IT)/(h·cm²) = 11630 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
| International table kilocalorie per hour per square centimetre (kcal(IT)/(h·cm²)) | International table BTU per hour per square foot (BTU(IT)/(h·ft²)) |
|---|---|
| 1 kcal(IT)/(h·cm²) | 3686.69 BTU(IT)/(h·ft²) |
| 2 kcal(IT)/(h·cm²) | 7373.38 BTU(IT)/(h·ft²) |
| 5 kcal(IT)/(h·cm²) | 18433.5 BTU(IT)/(h·ft²) |
| 10 kcal(IT)/(h·cm²) | 36866.9 BTU(IT)/(h·ft²) |
| 25 kcal(IT)/(h·cm²) | 92167.3 BTU(IT)/(h·ft²) |
| 50 kcal(IT)/(h·cm²) | 184335 BTU(IT)/(h·ft²) |
| 100 kcal(IT)/(h·cm²) | 368669 BTU(IT)/(h·ft²) |