Convert Apostilbs to Skots
Convert Apostilbs (asb) to Skots (sk) instantly and accurately.
Conversion Formula
sk = asb × 1000
About Apostilbs
The apostilb (asb) equals 1/π cd/m² ≈ 0.3183 cd/m², defined as the luminance of a perfectly diffuse Lambertian surface with an exitance of 1 lm/m². Introduced by the CIE in 1940 and used in European photometry standards and retinal illuminance calculations. 1 asb = 1/π cd/m² ≈ 0.3183 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
| Apostilbs (asb) | Skots (sk) |
|---|---|
| 1 asb | 1000 sk |
| 2 asb | 2000 sk |
| 5 asb | 5000 sk |
| 10 asb | 10000 sk |
| 25 asb | 25000 sk |
| 50 asb | 50000 sk |
| 100 asb | 100000 sk |