Convert Nanowatt per square metre to Watt per square inch
Convert Nanowatt per square metre (nW/m²) to Watt per square inch (W/in²) instantly and accurately.
Conversion Formula
W/in² = nW/m² × 6.451600000e-13
About Nanowatt per square metre
The nanowatt per square metre (nW/m²) equals 10⁻⁹ W/m². Used in astrophysics and cosmology for quantifying extremely weak radiation fields, such as cosmic microwave background intensity and residual thermal emission from near-absolute-zero objects. Relevant in precision cryogenic sensor calibration. 1 nW/m² = 10⁻⁹ W/m² = 10³ pW/m².
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
| Nanowatt per square metre (nW/m²) | Watt per square inch (W/in²) |
|---|---|
| 1 nW/m² | 6.452 × 10-13 W/in² |
| 2 nW/m² | 1.29 × 10-12 W/in² |
| 5 nW/m² | 3.226 × 10-12 W/in² |
| 10 nW/m² | 6.452 × 10-12 W/in² |
| 25 nW/m² | 1.613 × 10-11 W/in² |
| 50 nW/m² | 3.226 × 10-11 W/in² |
| 100 nW/m² | 6.452 × 10-11 W/in² |