Foot-Candle (fc)
The foot-candle (fc) equals 10.7639104167 lux — one lumen per square foot, the common US illuminance unit.
Foot-candles appear in US architectural lighting specs, real-estate listings, and OSHA workplace lighting guidance.
Convert foot-candle to lux instantly. Type in either field — results update live.
Selected fc values converted to lx using the exact factor from this tool.
| fc | lx |
|---|---|
| 0.01 | 0.10763910417 |
| 0.1 | 1.0763910417 |
| 1 | 10.7639104167 |
| 2 | 21.5278208334 |
| 3 | 32.2917312501 |
| 5 | 53.8195520835 |
| 10 | 107.639104167 |
| 20 | 215.278208334 |
| 50 | 538.195520835 |
| 100 | 1,076.39104167 |
| 1,000 | 10,763.9104167 |
Exact conversion factors in both directions, plus a worked example.
1 fc = 10.7639104167 lx
1 lx = 0.09290304 fc
To convert foot-candle to lux, multiply by 10.7639104167.
To convert lux to foot-candle, multiply by 0.09290304.
Example: convert 10 fc to lx
10 × 10.7639104167 = 107.639104167 lx
Short background on the units used in this conversion.
The foot-candle (fc) equals 10.7639104167 lux — one lumen per square foot, the common US illuminance unit.
Foot-candles appear in US architectural lighting specs, real-estate listings, and OSHA workplace lighting guidance.
The lux (lx) is the SI unit of illuminance — one lumen of luminous flux per square meter on a surface.
Lux measures workplace lighting levels, photography exposure planning, and building-code minimum illuminance requirements.
lx = fc × 10.7639104167fc = lx × 0.09290304, using the same exact factors as this converter.