Convert Foot-candles to Microlux
Convert Foot-candles (fc) to Microlux (µlx) instantly and accurately.
Conversion Formula
µlx = fc × 10763910.42
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 Microlux
The microlux (µlx) equals 10⁻⁶ lx. Natural night illuminance: a moonless overcast sky ~100 µlx; scattered starlight ~200-300 µlx; crescent moon ~10-50 µlx. Used in night-vision equipment sensitivity specifications and observatory site-quality assessments. 1 µlx = 10⁻⁶ lx.
Quick Reference Table
| Foot-candles (fc) | Microlux (µlx) |
|---|---|
| 1 fc | 10763900 µlx |
| 2 fc | 21527800 µlx |
| 5 fc | 53819600 µlx |
| 10 fc | 107639000 µlx |
| 25 fc | 269098000 µlx |
| 50 fc | 538196000 µlx |
| 100 fc | 1.076 × 109 µlx |