Convert Candelas per square inch to Skots
Convert Candelas per square inch (cd/in²) to Skots (sk) instantly and accurately.
Conversion Formula
sk = cd/in² × 4869478.352
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.
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
| Candelas per square inch (cd/in²) | Skots (sk) |
|---|---|
| 1 cd/in² | 4869480 sk |
| 2 cd/in² | 9738960 sk |
| 5 cd/in² | 24347400 sk |
| 10 cd/in² | 48694800 sk |
| 25 cd/in² | 121737000 sk |
| 50 cd/in² | 243474000 sk |
| 100 cd/in² | 486948000 sk |