Convert Skots to Candelas per square inch
Convert Skots (sk) to Candelas per square inch (cd/in²) instantly and accurately.
Conversion Formula
cd/in² = sk × 2.053608062e-7
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 Candelas per square inch
The candela per square inch (cd/in²) equals 1/0.00064516 cd/m² ≈ 1 550 cd/m². Used in US LED and CRT datasheets when citing luminance of small emitter areas. A high-brightness packaged LED chip in a focussed-beam configuration can reach 1-20 cd/in². 1 cd/in² = 1/(0.0254²) cd/m².
Quick Reference Table
| Skots (sk) | Candelas per square inch (cd/in²) |
|---|---|
| 1 sk | 2.054 × 10-7 cd/in² |
| 2 sk | 4.107 × 10-7 cd/in² |
| 5 sk | 1.027 × 10-6 cd/in² |
| 10 sk | 2.054 × 10-6 cd/in² |
| 25 sk | 5.134 × 10-6 cd/in² |
| 50 sk | 1.027 × 10-5 cd/in² |
| 100 sk | 2.054 × 10-5 cd/in² |