Convert Foot-candles to Lux
Convert foot-candles to lux by entering a value below.
How to Convert Foot-candles to Lux
The foot-candle and lux are both units of illuminance. 1 foot-candle equals 10.763910417 lux. This means to convert foot-candles to lux, you multiply by 10.763910417.
Formula
Step-by-Step Example
Convert 5 fc to lux:
We need to convert foot-candles to lux
Since 1 fc = 10.763910417 lx, multiply by 10.763910417
5 × 10.763910417 = 53.819552085
5 fc = 53.819552085 lx
Foot-candle to Lux Conversion Table
Quick reference table for common foot-candle to lux conversions. Click any value for detailed calculation.
| Foot-candles (fc) | Lux (lx) |
|---|---|
| 1 fc | 10.763910417 lx |
| 2 fc | 21.527820834 lx |
| 5 fc | 53.819552085 lx |
| 10 fc | 107.63910417 lx |
| 15 fc | 161.45865626 lx |
| 20 fc | 215.27820834 lx |
| 25 fc | 269.09776043 lx |
| 50 fc | 538.19552085 lx |
| 100 fc | 1076.3910417 lx |
About These Units
Foot-candle (fc)
A foot-candle (fc) is the imperial illuminance unit—light from one candela source at one foot distance, equal to 10.764 lux. US lighting standards: office 30-50 fc, retail 50-100 fc, warehouse 10-30 fc. IESNA recommendations use foot-candles. One fc = one lumen per square foot.
Lux (lx)
The lux (lx) is the SI unit of illuminance, measuring luminous flux per area (lumens per square meter). Typical values: moonlight 0.1 lx, office 300-500 lx, overcast day 1,000 lx, operating room 10,000 lx, direct sunlight 100,000 lx. Used in lighting design, photography, and workplace safety standards.
Frequently Asked Questions
How do I convert foot-candles to lux?
To convert foot-candles to lux, multiply the value by 10.763910417. For example, 10 fc = 107.63910417 lx.
How many lux are in 1 foot-candle?
1 foot-candle equals 10.763910417 lux.
What is the formula for foot-candles to lux?
The formula is: lx = fc × 10.763910417.