Foot-candle to Lux Converter
1 foot-candle is about 10.76391042 lux. Convert foot-candles (fc) to lux (lx) below: type a value and the result updates as you type.
fc to lx calculator
Result
Foot-candle to Lux conversion
1 fc ≈ 10.76391042 lxone foot-candle in lux
1 lx = 0.09290304 fcone lux in foot-candles
Foot-candle (fc): One lumen per square foot: 1 ÷ 0.09290304 lux. Used in US lighting design.
Lux (lx): SI unit of illuminance: one lumen per square meter. Office lighting is typically around 500 lx.
Source:Foot-candle: NIST Special Publication 811 (2008), Appendix B.8; Lux: SI Brochure, 9th edition (BIPM, 2019)
How to convert foot-candles to lux
To convert foot-candles to lux, divide the number of foot-candles by 0.09290304.
Formula
lx = fc ÷ 0.09290304
Examples
- 5 fc = 5 ÷ 0.09290304 ≈ 53.81955208 lx
- 25 fc = 25 ÷ 0.09290304 ≈ 269.0977604 lx
- 100 fc = 100 ÷ 0.09290304 ≈ 1076.391042 lx
Foot-candle to Lux conversion table
| Foot-candle (fc) | Lux (lx) |
|---|---|
| 0.1 fc | 1.076391042 lx |
| 0.5 fc | 5.381955208 lx |
| 1 fc | 10.76391042 lx |
| 2 fc | 21.52782083 lx |
| 3 fc | 32.29173125 lx |
| 5 fc | 53.81955208 lx |
| 10 fc | 107.6391042 lx |
| 20 fc | 215.2782083 lx |
| 25 fc | 269.0977604 lx |
| 50 fc | 538.1955208 lx |
| 100 fc | 1076.391042 lx |
| 250 fc | 2690.977604 lx |
| 500 fc | 5381.955208 lx |
| 1000 fc | 10763.91042 lx |
Values rounded to 10 significant digits where needed.
Frequently asked questions
- How many lux are in one foot-candle?
- One foot-candle is about 10.76391042 lux.
- How do I convert lux to foot-candles?
- To convert lux to foot-candles, multiply the number of lux by 0.09290304. The formula is fc = lx × 0.09290304.
- Is this conversion exact?
- Yes. Both units have exact definitions and the factor 0.09290304 is exact. Displayed results are only rounded when they have many decimal places.
- Which is larger, a foot-candle or a lux?
- A foot-candle is about 10.76391042 times larger than a lux. In other words, a lux is 0.09290304 of a foot-candle.