Convert Watt per square millimetre to Erg per second per square centimetre
Convert Watt per square millimetre (W/mm²) to Erg per second per square centimetre (erg/(s·cm²)) instantly and accurately.
Conversion Formula
erg/(s·cm²) = W/mm² × 1000000000
About Watt per square millimetre
The watt per square millimetre (W/mm²) equals exactly 10⁶ W/m². Used in high-power laser material processing - cutting, welding, and additive manufacturing - and electron beam applications. A 1 kW laser focused to 1 mm² achieves 1 W/mm². Numerically equal to MW/m². 1 W/mm² = 10⁶ W/m² = 100 W/cm².
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
| Watt per square millimetre (W/mm²) | Erg per second per square centimetre (erg/(s·cm²)) |
|---|---|
| 1 W/mm² | 1 × 109 erg/(s·cm²) |
| 2 W/mm² | 2 × 109 erg/(s·cm²) |
| 5 W/mm² | 5 × 109 erg/(s·cm²) |
| 10 W/mm² | 1 × 1010 erg/(s·cm²) |
| 25 W/mm² | 2.5 × 1010 erg/(s·cm²) |
| 50 W/mm² | 5 × 1010 erg/(s·cm²) |
| 100 W/mm² | 1 × 1011 erg/(s·cm²) |