50 Lux to Foot-Candles
50 lx ≈ 4.65 fc
50 lux is approximately 4.65 foot-candles.
How to convert 50 lx to fc
Use the formula fc = lx ÷ 10.763910417:
fc = 50 ÷ 10.763910417fc = 4.645152
So 50 lx = 4.645152 fc, or about 4.65 fc rounded.
Rounded values and quick estimate
- Rounded to a whole number: 5 fc
- Rounded to one decimal place: 4.6 fc
- Conversion factor: 1 lux = 0.0929 foot-candles
Quick mental estimate: divide by 10. For 50 lx that gives about 5 fc — off by 0.3548 fc (7.6%). Use the exact formula when precision matters.
50 Lux in other units
- Foot-candles
- 4.65 fc
50 lx and nearby values
| Lux | Foot-candles |
|---|---|
| 46 lx | 4.27 fc |
| 47 lx | 4.37 fc |
| 48 lx | 4.46 fc |
| 49 lx | 4.55 fc |
| 50 lx | 4.65 fc |
| 51 lx | 4.74 fc |
| 52 lx | 4.83 fc |
| 53 lx | 4.92 fc |
| 54 lx | 5.02 fc |
About lux and foot-candles
Lux is the SI unit of illuminance: one lumen per square meter. Offices are typically lit to 300–500 lux.
A foot-candle is one lumen per square foot, about 10.76 lux. US lighting design often uses foot-candles.
Related conversions
Frequently asked questions
What is 50 Lux in Foot-Candles?
50 lux is about 4.65 foot-candles (50 lx ≈ 4.65 fc).
How do you convert 50 lx to fc?
Apply fc = lx ÷ 10.763910417: fc = 50 ÷ 10.763910417, fc = 4.645152.
How many lux is 4.65 fc?
4.65 fc is about 50.05 lux.