Convert International table BTU per second per square foot to Erg per second per square centimetre
Convert International table BTU per second per square foot (BTU(IT)/(s·ft²)) to Erg per second per square centimetre (erg/(s·cm²)) instantly and accurately.
Conversion Formula
erg/(s·cm²) = BTU(IT)/(s·ft²) × 11356526.68
About International table BTU per second per square foot
The international table BTU per second per square foot (BTU(IT)/(s·ft²)) equals 1055.05585262/0.09290304 ≈ 11357 W/m² (= 3600 × BTU(IT)/(h·ft²)). Used for extreme heat flux: atmospheric re-entry aerodynamic heating, solid rocket nozzle throat, and nuclear reactor thermal hydraulics design. 1 BTU(IT)/(s·ft²) ≈ 11357 W/m².
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.
Quick Reference Table
| International table BTU per second per square foot (BTU(IT)/(s·ft²)) | Erg per second per square centimetre (erg/(s·cm²)) |
|---|---|
| 1 BTU(IT)/(s·ft²) | 11356500 erg/(s·cm²) |
| 2 BTU(IT)/(s·ft²) | 22713100 erg/(s·cm²) |
| 5 BTU(IT)/(s·ft²) | 56782600 erg/(s·cm²) |
| 10 BTU(IT)/(s·ft²) | 113565000 erg/(s·cm²) |
| 25 BTU(IT)/(s·ft²) | 283913000 erg/(s·cm²) |
| 50 BTU(IT)/(s·ft²) | 567826000 erg/(s·cm²) |
| 100 BTU(IT)/(s·ft²) | 1.136 × 109 erg/(s·cm²) |