Convert Skots to Picocandelas per square metre
Convert Skots (sk) to Picocandelas per square metre (pcd/m²) instantly and accurately.
Conversion Formula
pcd/m² = sk × 318309886.2
About Skots
The skot (sk) equals 10⁻³/π cd/m² ≈ 3.183×10⁻⁴ cd/m², defined as one-thousandth of an apostilb. A legacy photometric unit from early German-language vision science. The dark-adapted human eye threshold is around 3×10⁻⁴ cd/m², close to 1 sk. Now obsolete; replaced by cd/m² in SI photometry. 1 sk = 10⁻³/π cd/m².
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.
Quick Reference Table
| Skots (sk) | Picocandelas per square metre (pcd/m²) |
|---|---|
| 1 sk | 318310000 pcd/m² |
| 2 sk | 636620000 pcd/m² |
| 5 sk | 1.592 × 109 pcd/m² |
| 10 sk | 3.183 × 109 pcd/m² |
| 25 sk | 7.958 × 109 pcd/m² |
| 50 sk | 1.592 × 1010 pcd/m² |
| 100 sk | 3.183 × 1010 pcd/m² |