Convert Nanowatt per square metre to International table kilocalorie per hour per square metre
Convert Nanowatt per square metre (nW/m²) to International table kilocalorie per hour per square metre (kcal(IT)/(h·m²)) instantly and accurately.
Conversion Formula
kcal(IT)/(h·m²) = nW/m² × 8.598452279e-10
About Nanowatt per square metre
The nanowatt per square metre (nW/m²) equals 10⁻⁹ W/m². Used in astrophysics and cosmology for quantifying extremely weak radiation fields, such as cosmic microwave background intensity and residual thermal emission from near-absolute-zero objects. Relevant in precision cryogenic sensor calibration. 1 nW/m² = 10⁻⁹ W/m² = 10³ pW/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
| Nanowatt per square metre (nW/m²) | International table kilocalorie per hour per square metre (kcal(IT)/(h·m²)) |
|---|---|
| 1 nW/m² | 8.598 × 10-10 kcal(IT)/(h·m²) |
| 2 nW/m² | 1.72 × 10-9 kcal(IT)/(h·m²) |
| 5 nW/m² | 4.299 × 10-9 kcal(IT)/(h·m²) |
| 10 nW/m² | 8.598 × 10-9 kcal(IT)/(h·m²) |
| 25 nW/m² | 2.15 × 10-8 kcal(IT)/(h·m²) |
| 50 nW/m² | 4.299 × 10-8 kcal(IT)/(h·m²) |
| 100 nW/m² | 8.598 × 10-8 kcal(IT)/(h·m²) |