Convert Thermochemical kilocalorie per hour per square metre to Nanowatt per square metre
Convert Thermochemical kilocalorie per hour per square metre (kcal(th)/(h·m²)) to Nanowatt per square metre (nW/m²) instantly and accurately.
Conversion Formula
nW/m² = kcal(th)/(h·m²) × 1162222222
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 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.
Quick Reference Table
| Thermochemical kilocalorie per hour per square metre (kcal(th)/(h·m²)) | Nanowatt per square metre (nW/m²) |
|---|---|
| 1 kcal(th)/(h·m²) | 1.162 × 109 nW/m² |
| 2 kcal(th)/(h·m²) | 2.324 × 109 nW/m² |
| 5 kcal(th)/(h·m²) | 5.811 × 109 nW/m² |
| 10 kcal(th)/(h·m²) | 1.162 × 1010 nW/m² |
| 25 kcal(th)/(h·m²) | 2.906 × 1010 nW/m² |
| 50 kcal(th)/(h·m²) | 5.811 × 1010 nW/m² |
| 100 kcal(th)/(h·m²) | 1.162 × 1011 nW/m² |