Convert Foot-candles to Nanolux
Convert Foot-candles (fc) to Nanolux (nlx) instantly and accurately.
Conversion Formula
nlx = fc × 10763910420
About Foot-candles
The foot-candle (fc) equals 1 lm/ft² ≈ 10.764 lx. Standard in North American lighting design: IESNA recommends 30-50 fc for general offices, 50-100 fc for retail displays, 12-16 fc for cinema screens. Still the dominant unit in the US, Canada and some other countries. 1 fc = 1/0.09290304 lx.
About Nanolux
The nanolux (nlx) equals 10⁻⁹ lx. Astronomical night-sky scale: the zodiacal band contributes ~10-50 nlx; airglow ~150 nlx; the Milky Way core ~100 nlx. The absolute human eye threshold is around 100 nlx. Used in night-sky quality metrics and photomultiplier tube calibration. 1 nlx = 10⁻⁹ lx.
Quick Reference Table
| Foot-candles (fc) | Nanolux (nlx) |
|---|---|
| 1 fc | 1.076 × 1010 nlx |
| 2 fc | 2.153 × 1010 nlx |
| 5 fc | 5.382 × 1010 nlx |
| 10 fc | 1.076 × 1011 nlx |
| 25 fc | 2.691 × 1011 nlx |
| 50 fc | 5.382 × 1011 nlx |
| 100 fc | 1.076 × 1012 nlx |