Convert Watt per square millimetre to International table kilocalorie per hour per square metre
Convert Watt per square millimetre (W/mm²) to International table kilocalorie per hour per square metre (kcal(IT)/(h·m²)) instantly and accurately.
Conversion Formula
kcal(IT)/(h·m²) = W/mm² × 859845.2279
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.
About International table kilocalorie per hour per square metre
The international table kilocalorie per hour per square metre (kcal(IT)/(h·m²)) equals 4186.8/3600 ≈ 1.1633 W/m² (1 kcal(IT) = 4186.8 J; 1 h = 3600 s). The IT variant used in steam engineering, solar thermal collector standards, and process heat calculations. 1 kcal(IT)/(h·m²) ≈ 1.1633 W/m².
Quick Reference Table
| Watt per square millimetre (W/mm²) | International table kilocalorie per hour per square metre (kcal(IT)/(h·m²)) |
|---|---|
| 1 W/mm² | 859845 kcal(IT)/(h·m²) |
| 2 W/mm² | 1719690 kcal(IT)/(h·m²) |
| 5 W/mm² | 4299230 kcal(IT)/(h·m²) |
| 10 W/mm² | 8598450 kcal(IT)/(h·m²) |
| 25 W/mm² | 21496100 kcal(IT)/(h·m²) |
| 50 W/mm² | 42992300 kcal(IT)/(h·m²) |
| 100 W/mm² | 85984500 kcal(IT)/(h·m²) |