Convert Picocandelas per square metre to Skots
Convert Picocandelas per square metre (pcd/m²) to Skots (sk) instantly and accurately.
Conversion Formula
sk = pcd/m² × 3.141592654e-9
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 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.
Quick Reference Table
| Picocandelas per square metre (pcd/m²) | Skots (sk) |
|---|---|
| 1 pcd/m² | 3.142 × 10-9 sk |
| 2 pcd/m² | 6.283 × 10-9 sk |
| 5 pcd/m² | 1.571 × 10-8 sk |
| 10 pcd/m² | 3.142 × 10-8 sk |
| 25 pcd/m² | 7.854 × 10-8 sk |
| 50 pcd/m² | 1.571 × 10-7 sk |
| 100 pcd/m² | 3.142 × 10-7 sk |