Convert International table BTU per hour per square foot to Erg per second per square centimetre
Convert International table BTU per hour per square foot (BTU(IT)/(h·ft²)) to Erg per second per square centimetre (erg/(s·cm²)) instantly and accurately.
Conversion Formula
erg/(s·cm²) = BTU(IT)/(h·ft²) × 3154.590745
About International table BTU per hour per square foot
The international table BTU per hour per square foot (BTU(IT)/(h·ft²)) equals 1055.05585262/(3600×0.09290304) ≈ 3.15459 W/m². The standard US heat flux unit in ASHRAE, ASTM, and building codes for thermal resistance (R-value), boiler ratings, and heat exchanger design. 1 BTU(IT)/(h·ft²) ≈ 3.15459 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 hour per square foot (BTU(IT)/(h·ft²)) | Erg per second per square centimetre (erg/(s·cm²)) |
|---|---|
| 1 BTU(IT)/(h·ft²) | 3154.59 erg/(s·cm²) |
| 2 BTU(IT)/(h·ft²) | 6309.18 erg/(s·cm²) |
| 5 BTU(IT)/(h·ft²) | 15773 erg/(s·cm²) |
| 10 BTU(IT)/(h·ft²) | 31545.9 erg/(s·cm²) |
| 25 BTU(IT)/(h·ft²) | 78864.8 erg/(s·cm²) |
| 50 BTU(IT)/(h·ft²) | 157730 erg/(s·cm²) |
| 100 BTU(IT)/(h·ft²) | 315459 erg/(s·cm²) |