Convert Candelas per square foot to Lamberts
Convert Candelas per square foot (cd/ft²) to Lamberts (L) instantly and accurately.
Conversion Formula
L = cd/ft² × 0.003381582189
About Candelas per square foot
The candela per square foot (cd/ft²) equals 1/0.09290304 cd/m² ≈ 10.76 cd/m². Used in US lighting engineering; an illuminated office ceiling panel has luminance ~4-8 cd/ft². The ANSI ergonomic limit for computer workstation background sources is ~340 cd/ft². 1 cd/ft² = 1/0.09290304 cd/m².
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 An incandescent lamp globe at 3 200 K has luminance ~1 L; a clear sky is ~0.94 L. Superseded by cd/m² in SI photometry. 1 L = 10⁴/π cd/m².
Quick Reference Table
| Candelas per square foot (cd/ft²) | Lamberts (L) |
|---|---|
| 1 cd/ft² | 0.00338158 L |
| 2 cd/ft² | 0.00676316 L |
| 5 cd/ft² | 0.0169079 L |
| 10 cd/ft² | 0.0338158 L |
| 25 cd/ft² | 0.0845396 L |
| 50 cd/ft² | 0.169079 L |
| 100 cd/ft² | 0.338158 L |