Convert Foot-candles to Megalux
Convert Foot-candles (fc) to Megalux (Mlx) instantly and accurately.
Conversion Formula
Mlx = fc × 1.076391042e-5
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 Megalux
The megalux (Mlx) equals 10⁶ lx. Reached only by extreme short-range sources: a short-arc xenon lamp at 5 cm produces ~1-10 Mlx; pulsed photographic strobes at close range several Mlx. The full solar disc on Earth's surface gives ~100 klx - far below 1 Mlx. 1 Mlx = 10⁶ lx.
Quick Reference Table
| Foot-candles (fc) | Megalux (Mlx) |
|---|---|
| 1 fc | 1.076 × 10-5 Mlx |
| 2 fc | 2.153 × 10-5 Mlx |
| 5 fc | 5.382 × 10-5 Mlx |
| 10 fc | 0.000107639 Mlx |
| 25 fc | 0.000269098 Mlx |
| 50 fc | 0.000538196 Mlx |
| 100 fc | 0.00107639 Mlx |