Convert Thermochemical kilocalorie per hour per square metre to Watt per square millimetre
Convert Thermochemical kilocalorie per hour per square metre (kcal(th)/(h·m²)) to Watt per square millimetre (W/mm²) instantly and accurately.
Conversion Formula
W/mm² = kcal(th)/(h·m²) × 1.162222222e-6
About Thermochemical kilocalorie per hour per square metre
The thermochemical kilocalorie per hour per square metre (kcal(th)/(h·m²)) equals 4184/3600 ≈ 1.1622 W/m² (1 kcal(th) = 4184 J; 1 h = 3600 s). Used in older continental European and Soviet-era building physics standards for wall and roof heat loss calculations. 1 kcal(th)/(h·m²) ≈ 1.1622 W/m².
About Watt per square millimetre
The watt per square millimetre (W/mm²) equals exactly 10⁶ W/m². Used in high-power laser material processing - cutting, welding, and additive manufacturing - and electron beam applications. A 1 kW laser focused to 1 mm² achieves 1 W/mm². Numerically equal to MW/m². 1 W/mm² = 10⁶ W/m² = 100 W/cm².
Quick Reference Table
| Thermochemical kilocalorie per hour per square metre (kcal(th)/(h·m²)) | Watt per square millimetre (W/mm²) |
|---|---|
| 1 kcal(th)/(h·m²) | 1.162 × 10-6 W/mm² |
| 2 kcal(th)/(h·m²) | 2.324 × 10-6 W/mm² |
| 5 kcal(th)/(h·m²) | 5.811 × 10-6 W/mm² |
| 10 kcal(th)/(h·m²) | 1.162 × 10-5 W/mm² |
| 25 kcal(th)/(h·m²) | 2.906 × 10-5 W/mm² |
| 50 kcal(th)/(h·m²) | 5.811 × 10-5 W/mm² |
| 100 kcal(th)/(h·m²) | 0.000116222 W/mm² |