Convert Kilolux to Foot-candles
Convert Kilolux (klx) to Foot-candles (fc) instantly and accurately.
Conversion Formula
fc = klx × 92.90304
About Kilolux
The kilolux (klx) equals 1 000 lx. Outdoor daytime scale: overcast sky ~10-20 klx; direct mid-latitude sunshine at noon ~80-100 klx. Required for fine inspection work, surgery, and color-critical print evaluation (ISO 3664: 2 klx). Also the range for plant-growth LED systems at canopy level. 1 klx = 10³ lx.
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.
Quick Reference Table
| Kilolux (klx) | Foot-candles (fc) |
|---|---|
| 1 klx | 92.903 fc |
| 2 klx | 185.806 fc |
| 5 klx | 464.515 fc |
| 10 klx | 929.03 fc |
| 25 klx | 2322.58 fc |
| 50 klx | 4645.15 fc |
| 100 klx | 9290.3 fc |