Convert Foot-candles to Picolux
Convert Foot-candles (fc) to Picolux (plx) instantly and accurately.
Conversion Formula
plx = fc × 10763910420000
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 Picolux
The picolux (plx) equals 10⁻¹² lx. A theoretical subunit used only in precision photometric standard traceability. Even the faintest measurable natural illuminance - starlight on a moonless night at ~200 nlx - is 200 billion times brighter. Appears only in SI reference chains for calibration laboratories. 1 plx = 10⁻¹² lx.
Quick Reference Table
| Foot-candles (fc) | Picolux (plx) |
|---|---|
| 1 fc | 1.076 × 1013 plx |
| 2 fc | 2.153 × 1013 plx |
| 5 fc | 5.382 × 1013 plx |
| 10 fc | 1.076 × 1014 plx |
| 25 fc | 2.691 × 1014 plx |
| 50 fc | 5.382 × 1014 plx |
| 100 fc | 1.076 × 1015 plx |