Convert Milliwatt per square metre to Watt per square inch
Convert Milliwatt per square metre (mW/m²) to Watt per square inch (W/in²) instantly and accurately.
Conversion Formula
W/in² = mW/m² × 6.451600000e-7
About Milliwatt per square metre
The milliwatt per square metre (mW/m²) equals 10⁻³ W/m². Relevant in geothermal surveys: global average continental heat flux ≈ 65 mW/m², oceanic ≈ 101 mW/m². Used in building physics for quantifying very small heat leakage through ultra-high-performance insulation. 1 mW/m² = 10⁻³ W/m² = 1 erg/(s·cm²).
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.
Quick Reference Table
| Milliwatt per square metre (mW/m²) | Watt per square inch (W/in²) |
|---|---|
| 1 mW/m² | 6.452 × 10-7 W/in² |
| 2 mW/m² | 1.29 × 10-6 W/in² |
| 5 mW/m² | 3.226 × 10-6 W/in² |
| 10 mW/m² | 6.452 × 10-6 W/in² |
| 25 mW/m² | 1.613 × 10-5 W/in² |
| 50 mW/m² | 3.226 × 10-5 W/in² |
| 100 mW/m² | 6.452 × 10-5 W/in² |