Convert Picocandelas per square metre to Meganits
Convert Picocandelas per square metre (pcd/m²) to Meganits (Mcd/m²) instantly and accurately.
Conversion Formula
Mcd/m² = pcd/m² × 1.000000000e-18
About Picocandelas per square metre
The picocandela per square metre (pcd/m²) equals 10⁻¹² cd/m². A theoretical subunit for precision photometric standards and astrophysical brightness modelling. Even the darkest measurable surfaces in calibrated laboratories have luminance many orders of magnitude above this scale. Used only in radiometric standard traceability chains. 1 pcd/m² = 10⁻¹² cd/m².
About Meganits
The meganit (Mcd/m²) equals 10⁶ cd/m². The scale for extreme light sources: outdoor LED video walls at peak brightness reach 3-10 Mcd/m²; laser exit apertures are typically 10-10 000 Mcd/m²; the solar disc at zenith has luminance ≈1 600 Mcd/m² (1.6×10⁹ cd/m²). Used in laser safety and high-power illumination. 1 Mcd/m² = 10⁶ cd/m².
Quick Reference Table
| Picocandelas per square metre (pcd/m²) | Meganits (Mcd/m²) |
|---|---|
| 1 pcd/m² | 1 × 10-18 Mcd/m² |
| 2 pcd/m² | 2 × 10-18 Mcd/m² |
| 5 pcd/m² | 5 × 10-18 Mcd/m² |
| 10 pcd/m² | 1 × 10-17 Mcd/m² |
| 25 pcd/m² | 2.5 × 10-17 Mcd/m² |
| 50 pcd/m² | 5 × 10-17 Mcd/m² |
| 100 pcd/m² | 1 × 10-16 Mcd/m² |