Lux to Foot-candle Converter
1 lux is exactly 0.09290304 foot-candles. Convert lux (lx) to foot-candles (fc) below: type a value and the result updates as you type.
lx to fc calculator
Result
Lux to Foot-candle conversion
1 lx = 0.09290304 fcone lux in foot-candles
1 fc ≈ 10.76391042 lxone foot-candle in lux
Lux (lx): SI unit of illuminance: one lumen per square meter. Office lighting is typically around 500 lx.
Foot-candle (fc): One lumen per square foot: 1 ÷ 0.09290304 lux. Used in US lighting design.
Source:Lux: SI Brochure, 9th edition (BIPM, 2019); Foot-candle: NIST Special Publication 811 (2008), Appendix B.8
How to convert lux to foot-candles
To convert lux to foot-candles, multiply the number of lux by 0.09290304.
Formula
fc = lx × 0.09290304
Examples
- 5 lx = 5 × 0.09290304 = 0.4645152 fc
- 25 lx = 25 × 0.09290304 = 2.322576 fc
- 100 lx = 100 × 0.09290304 = 9.290304 fc
Lux to Foot-candle conversion table
| Lux (lx) | Foot-candle (fc) |
|---|---|
| 0.1 lx | 0.009290304 fc |
| 0.5 lx | 0.04645152 fc |
| 1 lx | 0.09290304 fc |
| 2 lx | 0.18580608 fc |
| 3 lx | 0.27870912 fc |
| 5 lx | 0.4645152 fc |
| 10 lx | 0.9290304 fc |
| 20 lx | 1.8580608 fc |
| 25 lx | 2.322576 fc |
| 50 lx | 4.645152 fc |
| 100 lx | 9.290304 fc |
| 250 lx | 23.22576 fc |
| 500 lx | 46.45152 fc |
| 1000 lx | 92.90304 fc |
Values rounded to 10 significant digits where needed.
Frequently asked questions
- How many foot-candles are in one lux?
- One lux is exactly 0.09290304 foot-candles.
- How do I convert foot-candles to lux?
- To convert foot-candles to lux, divide the number of foot-candles by 0.09290304. The formula is lx = fc ÷ 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 lux or a foot-candle?
- A foot-candle is about 10.76391042 times larger than a lux. In other words, a lux is 0.09290304 of a foot-candle.