Convert Watt per square metre to International table kilocalorie per hour per square metre
Convert Watt per square metre (W/m²) to International table kilocalorie per hour per square metre (kcal(IT)/(h·m²)) instantly and accurately.
Conversion Formula
kcal(IT)/(h·m²) = W/m² × 0.8598452279
About Watt per square metre
The watt per square metre (W/m²) is the SI coherent unit for heat flux density and irradiance. Solar irradiance at Earth's surface ≈ 1000 W/m²; solar constant ≈ 1361 W/m²; human skin radiative emission ≈ 100 W/m²; global average geothermal flux ≈ 0.087 W/m². Referenced in ISO 80000-4. 1 W/m² = 1 J/(s·m²) = 10⁻³ kW/m².
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 metre (W/m²) | International table kilocalorie per hour per square metre (kcal(IT)/(h·m²)) |
|---|---|
| 1 W/m² | 0.859845 kcal(IT)/(h·m²) |
| 2 W/m² | 1.71969 kcal(IT)/(h·m²) |
| 5 W/m² | 4.29923 kcal(IT)/(h·m²) |
| 10 W/m² | 8.59845 kcal(IT)/(h·m²) |
| 25 W/m² | 21.4961 kcal(IT)/(h·m²) |
| 50 W/m² | 42.9923 kcal(IT)/(h·m²) |
| 100 W/m² | 85.9845 kcal(IT)/(h·m²) |