Lux to Foot-candles
Type a value in Lux and get the result in Foot-candles, calculated exactly.
500 Lux = 46.45152 Foot-candles
Precision
Exact factorThis result is exact.
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Formula
fc = lx × 0.09290304
To convert Lux to Foot-candles, multiply the value by 0.09290304.
Worked examples
- 1 lx × 0.09290304 = 0.09290304 fc
- 500 lx × 0.09290304 = 46.45152 fc
- 100 lx × 0.09290304 = 9.290304 fc
This factor is exact by definition.
Conversion table
| Lux (lx) | Foot-candles (fc) |
|---|---|
| 1 | 0.09290304 |
| 2 | 0.18580608 |
| 3 | 0.27870912 |
| 4 | 0.37161216 |
| 5 | 0.4645152 |
| 6 | 0.55741824 |
| 7 | 0.65032128 |
| 8 | 0.74322432 |
| 9 | 0.83612736 |
| 10 | 0.9290304 |
| 15 | 1.3935456 |
| 20 | 1.8580608 |
| 25 | 2.322576 |
| 30 | 2.7870912 |
| 40 | 3.7161216 |
| 50 | 4.645152 |
| 60 | 5.5741824 |
| 70 | 6.5032128 |
| 75 | 6.967728 |
| 80 | 7.4322432 |
| 90 | 8.3612736 |
| 100 | 9.290304 |
Values marked ≈ are rounded; the rest are exact.
Reverse table: Foot-candles to Lux
| Foot-candles (fc) | Lux (lx) |
|---|---|
| 1 | ≈ 10.76391 |
| 2 | ≈ 21.52782 |
| 3 | ≈ 32.29173 |
| 4 | ≈ 43.05564 |
| 5 | ≈ 53.81955 |
| 6 | ≈ 64.58346 |
| 7 | ≈ 75.34737 |
| 8 | ≈ 86.11128 |
| 9 | ≈ 96.87519 |
| 10 | ≈ 107.6391 |
| 15 | ≈ 161.4587 |
| 20 | ≈ 215.2782 |
| 25 | ≈ 269.0978 |
| 30 | ≈ 322.9173 |
| 40 | ≈ 430.5564 |
| 50 | ≈ 538.1955 |
| 60 | ≈ 645.8346 |
| 70 | ≈ 753.4737 |
| 75 | ≈ 807.2933 |
| 80 | ≈ 861.1128 |
| 90 | ≈ 968.7519 |
| 100 | ≈ 1,076.391 |
Unit definitions
- Lux lx
- The SI unit of illuminance: one lumen per square metre.
- Foot-candles fc
- One lumen per square foot: about 10.7639 lux.
Questions people ask
Lux to Foot-candles: what is the conversion factor?
One lx is 0.09290304 fc.
How do I convert Lux to Foot-candles?
Use the formula above. For example, 500 lx = 46.45152 fc.
Is the conversion exact?
Yes. Both units have exact definitions, so the factor is exact; a result is only rounded when its decimals never end.
Factors checked 19 October 2026.