Lux (lx)
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.
Lux to Foot-Candle
Convert lux to foot-candle instantly. Type in either field — results update live.
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illumination Lux Foot-Candle
1 lux = 0.09290304 foot-candles
Unit
Unit
Conversion table
Selected lx values converted to fc using the exact factor from this tool.
| lx | fc |
|---|---|
| 0.01 | 0.0009290304 |
| 0.1 | 0.009290304 |
| 1 | 0.09290304 |
| 2 | 0.18580608 |
| 3 | 0.27870912 |
| 5 | 0.4645152 |
| 10 | 0.9290304 |
| 20 | 1.8580608 |
| 50 | 4.645152 |
| 100 | 9.290304 |
| 1,000 | 92.9030400001 |
How to convert
Exact conversion factors in both directions, plus a worked example.
1 lx = 0.09290304 fc
1 fc = 10.7639104167 lx
To convert lux to foot-candle, multiply by 0.09290304.
To convert foot-candle to lux, multiply by 10.7639104167.
Example: convert 10 lx to fc
10 × 0.09290304 = 0.9290304 fc
About these units
Short background on the units used in this conversion.
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.
Frequently asked questions
How many foot-candles are in one lux?
One lux equals 0.09290304 foot-candles. Multiply your luxs value by 0.09290304 to convert to foot-candles.
What is the conversion formula?
fc = lx × 0.09290304The reverse is
lx = fc × 10.7639104167, using the same exact factors as this converter.Is this Lux to Foot-Candle converter private?
Yes. All calculations run locally in your browser. Nothing you type is sent to a server.