Illuminance
lux to foot-candles Converter
1 lx = 0.0929 fc. Enter any value and the result updates instantly.
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Accuracy and rounding
For workplace lighting, studios, photography, horticulture, and building specifications.
Lux is lumens per square meter; foot-candles are lumens per square foot, using the exact international foot.
Whole foot-candles values are usually enough for room surveys; calibrated lighting work should follow the meter resolution.
How to convert lux to foot-candles
- Type the lux value in the calculator.
- Keep lux selected as the from unit and foot-candles selected as the to unit.
- Use the instant result, or copy it with the copy button.
lux to foot-candles chart
| lux | foot-candles |
|---|---|
| 1 lx | 0.0929 fc |
| 5 lx | 0.46452 fc |
| 10 lx | 0.92903 fc |
| 50 lx | 4.6452 fc |
| 100 lx | 9.2903 fc |
| 500 lx | 46.4515 fc |
Formula
fc = lx x 0.09290304
Example: 1 lx = 0.0929 fc.
Source
Illuminance factors from NIST light-unit conversion tables, using lux as the shared reference unit.
Common questions
How do I convert lux to foot-candles?
Enter the lux value in the converter, or multiply by the factor shown in the formula. 1 lx = 0.0929 fc.
What should I watch out for?
Lux and foot-candles measure light on a surface, not total lamp output in lumens.
Where does this illuminance conversion come from?
Illuminance factors from NIST light-unit conversion tables, using lux as the shared reference unit. ConverterBase uses stable definitions and fixed conversion factors, not live or rounded market data.