Convert Erg per second per square centimetre to Thermochemical kilocalorie per hour per square metre
Convert Erg per second per square centimetre (erg/(s·cm²)) to Thermochemical kilocalorie per hour per square metre (kcal(th)/(h·m²)) instantly and accurately.
Conversion Formula
kcal(th)/(h·m²) = erg/(s·cm²) × 0.0008604206501
About Erg per second per square centimetre
The erg per second per square centimetre (erg/(s·cm²)) equals exactly 10⁻³ W/m² in SI (1 erg = 10⁻⁷ J; 1 cm² = 10⁻⁴ m²). The CGS irradiance unit used in classical electromagnetic theory, astrophysics, and older radiation physics literature. Numerically equal to the milliwatt per square metre. 1 erg/(s·cm²) = 10⁻³ W/m² = 1 mW/m².
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.
Quick Reference Table
| Erg per second per square centimetre (erg/(s·cm²)) | Thermochemical kilocalorie per hour per square metre (kcal(th)/(h·m²)) |
|---|---|
| 1 erg/(s·cm²) | 0.000860421 kcal(th)/(h·m²) |
| 2 erg/(s·cm²) | 0.00172084 kcal(th)/(h·m²) |
| 5 erg/(s·cm²) | 0.0043021 kcal(th)/(h·m²) |
| 10 erg/(s·cm²) | 0.00860421 kcal(th)/(h·m²) |
| 25 erg/(s·cm²) | 0.0215105 kcal(th)/(h·m²) |
| 50 erg/(s·cm²) | 0.043021 kcal(th)/(h·m²) |
| 100 erg/(s·cm²) | 0.0860421 kcal(th)/(h·m²) |