The formula to calculate Lux (\(lx\)) from Foot-candles (\(fc\)) is:
\[ lx = fc \times 10.76391 \]
Where:
Lux (lx) is a measure of illuminance, the total amount of visible light illuminating a point on a surface. Foot-candles (fc) is another measure of illuminance, commonly used in the United States.
Let's assume the following value:
Using the formula:
\[ lx = 100 \times 10.76391 \]
Evaluating:
\[ lx = 1076.391 \]
The Lux is 1076.391 lx.
| Foot-candles (fc) | Lux (lx) |
|---|---|
| 10 | 107.6391 |
| 20 | 215.2782 |
| 30 | 322.9173 |
| 40 | 430.5564 |
| 50 | 538.1955 |
| 60 | 645.8346 |
| 70 | 753.4737 |
| 80 | 861.1128 |
| 90 | 968.7519 |
| 100 | 1,076.3910 |