Convert Nanocandelas per square metre to Lamberts
Convert Nanocandelas per square metre (ncd/m²) to Lamberts (L) instantly and accurately.
Conversion Formula
L = ncd/m² × 3.141592654e-13
About Nanocandelas per square metre
The nanocandela per square metre (ncd/m²) equals 10⁻⁹ cd/m². Represents luminance at the threshold of cooled photomultiplier tubes and avalanche photodiode detectors. The darkest OLED black levels (~10⁻⁴ cd/m²) are still five orders of magnitude brighter; this unit is used in single-photon counting photometry. 1 ncd/m² = 10⁻⁹ 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 An incandescent lamp globe at 3 200 K has luminance ~1 L; a clear sky is ~0.94 L. Superseded by cd/m² in SI photometry. 1 L = 10⁴/π cd/m².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
| Nanocandelas per square metre (ncd/m²) | Lamberts (L) |
|---|---|
| 1 ncd/m² | 3.142 × 10-13 L |
| 2 ncd/m² | 6.283 × 10-13 L |
| 5 ncd/m² | 1.571 × 10-12 L |
| 10 ncd/m² | 3.142 × 10-12 L |
| 25 ncd/m² | 7.854 × 10-12 L |
| 50 ncd/m² | 1.571 × 10-11 L |
| 100 ncd/m² | 3.142 × 10-11 L |