fc to lx Converter
Convert fc to lx: 1 fc = 10.76391042 lx. Formula, worked example, table of common values and unit definitions.
Result538.1955208 lx
1 fc = 10.76391042 lx
50 fc =
538.1955208 lx
Formula
lx = fc × 10.76391042 fc = lx × 0.09290304
Worked example
- 50 fc × 10.76391042 = 538.1955208 lx
Common values
| fc | lx |
|---|---|
| 1 | 10.76391042 |
| 5 | 53.81955208 |
| 10 | 107.6391042 |
| 20 | 215.2782083 |
| 50 | 538.1955208 |
| 100 | 1,076.391042 |
Unit definitions
| Unit | Equals | What it is |
|---|---|---|
| fc | 10.76391042 lx | Foot-candle: one lumen per square foot, about 10.764 lux. |
| lx | 1 lx | Lux: one lumen per square metre. The SI unit of illuminance. |
Frequently asked questions
How many lx are in one fc?
1 fc = 10.76391042 lx.
What is the formula to convert fc to lx?
lx = fc × 10.76391042. To go back, fc = lx × 0.09290304.
What is the conversion factor from foot-candles to lux?
1 foot-candle = 10.7639 lux, because one lux is one lumen per square metre and one foot-candle is one lumen per square foot. Multiply the foot-candle value by 10.7639. Quick estimates use 10.76 or 10.
Where are foot-candles used in lighting design?
US codes and manufacturer photometric data often give illuminance in foot-candles, while IEC, EN and Indian standards use lux. Convert before comparing a design against a required maintained illuminance.
Related
Opposite direction: lx to fc
Illuminance and Luminance ConverterConversion Centre