Convert Watt per square inch to Milliwatt per square centimetre
Convert Watt per square inch (W/in²) to Milliwatt per square centimetre (mW/cm²) instantly and accurately.
Conversion Formula
mW/cm² = W/in² × 155.00031
About Watt per square inch
The watt per square inch (W/in²) equals 1/(6.4516×10⁻⁴) ≈ 1550.003 W/m² (1 in = 0.0254 m). Used in US electronics thermal management for PCB power density, semiconductor die heat flux, and power module ratings. 1 W/in² ≈ 1550 W/m² ≈ 0.155 W/cm².
About Milliwatt per square centimetre
The milliwatt per square centimetre (mW/cm²) equals exactly 10 W/m² (1 mW = 10⁻³ W; 1 cm² = 10⁻⁴ m²). Widely used in photonics, laser safety standards (IEC 60825), and UV dosimetry. Solar irradiance at Earth's surface ≈ 100 mW/cm². 1 mW/cm² = 10 W/m² = 0.001 W/cm².
Quick Reference Table
| Watt per square inch (W/in²) | Milliwatt per square centimetre (mW/cm²) |
|---|---|
| 1 W/in² | 155 mW/cm² |
| 2 W/in² | 310.001 mW/cm² |
| 5 W/in² | 775.002 mW/cm² |
| 10 W/in² | 1550 mW/cm² |
| 25 W/in² | 3875.01 mW/cm² |
| 50 W/in² | 7750.02 mW/cm² |
| 100 W/in² | 15500 mW/cm² |