Convert Lamberts to Candelas per square inch
Convert Lamberts (L) to Candelas per square inch (cd/in²) instantly and accurately.
Conversion Formula
cd/in² = L × 2.053608062
About Lamberts
The lambert (L) equals 10⁴/π cd/m² ≈ 3 183 cd/m², the luminance of a perfect diffuse surface emitting 1 lumen per square centimetre. The CGS practical luminance unit. An incandescent lamp globe at 3 200 K has luminance ~1 L; a clear sky is ~0.94 L. Superseded by cd/m² in SI photometry. 1 L = 10⁴/π cd/m².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
| Lamberts (L) | Candelas per square inch (cd/in²) |
|---|---|
| 1 L | 2.05361 cd/in² |
| 2 L | 4.10722 cd/in² |
| 5 L | 10.268 cd/in² |
| 10 L | 20.5361 cd/in² |
| 25 L | 51.3402 cd/in² |
| 50 L | 102.68 cd/in² |
| 100 L | 205.361 cd/in² |