Convert Violle to Nanocandelas
Convert Violle (Vl) to Nanocandelas (ncd) instantly and accurately.
Conversion Formula
ncd = Vl × 20170000000
About Violle
The violle (Vl) ≈ 20.17 cd is the first photometric unit not based on a flame source, proposed by Jules Violle in 1881 and adopted by the CGS system. Defined as the luminous intensity of 1 cm² of platinum at its solidification point (1 768 °C). Used historically in French and international photometry before 1948. 1 Vl ≈ 20.17 cd.
About Nanocandelas
The nanocandela (ncd) equals 10⁻⁹ cd. The scale of extremely faint bioluminescence: a single luciferin-luciferase reaction emits around 1-10 ncd; dark-adapted firefly flashes peak at a few hundred ncd. Also the range for cooled avalanche-photodiode sensitivity characterisation. 1 ncd = 10⁻⁹ cd.
Quick Reference Table
| Violle (Vl) | Nanocandelas (ncd) |
|---|---|
| 1 Vl | 2.017 × 1010 ncd |
| 2 Vl | 4.034 × 1010 ncd |
| 5 Vl | 1.008 × 1011 ncd |
| 10 Vl | 2.017 × 1011 ncd |
| 25 Vl | 5.043 × 1011 ncd |
| 50 Vl | 1.008 × 1012 ncd |
| 100 Vl | 2.017 × 1012 ncd |