Convert Milliwatt per square centimetre to Watt per square metre
Convert Milliwatt per square centimetre (mW/cm²) to Watt per square metre (W/m²) instantly and accurately.
Conversion Formula
W/m² = mW/cm² × 10
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.
About Watt per square metre
The watt per square metre (W/m²) is the SI coherent unit for heat flux density and irradiance. Solar irradiance at Earth's surface ≈ 1000 W/m²; solar constant ≈ 1361 W/m²; human skin radiative emission ≈ 100 W/m²; global average geothermal flux ≈ 0.087 W/m². Referenced in ISO 80000-4. 1 W/m² = 1 J/(s·m²) = 10⁻³ kW/m².
Quick Reference Table
| Milliwatt per square centimetre (mW/cm²) | Watt per square metre (W/m²) |
|---|---|
| 1 mW/cm² | 10 W/m² |
| 2 mW/cm² | 20 W/m² |
| 5 mW/cm² | 50 W/m² |
| 10 mW/cm² | 100 W/m² |
| 25 mW/cm² | 250 W/m² |
| 50 mW/cm² | 500 W/m² |
| 100 mW/cm² | 1000 W/m² |