Foot-candles to Lux Converter
Convert foot-candles to lux instantly with this free foot-candles to lux converter. Enter any value to get an accurate illumination conversion, plus the formula, the conversion factor and a full reference table.
What is 1 foot-candle in lux?
1 foot-candle is equal to 10.7639104 lux.
1 × 10.7639104 = 10.7639104 lux
Result
1 foot-candle = 10.76391042 lux
Foot-candles to Lux formula
lx = fc × 10.7639104
The foot-candles to lux conversion factor is 10.7639104167, which is exact by definition. 1 foot-candle = 10.7639104167 lux, and 1 lux = 0.09290304 foot-candles.
Worked examples
- 2 foot-candles = 21.5278208 lux — 2 × 10.7639104 = 21.5278208 lux
- 6 foot-candles = 64.5834625 lux — 6 × 10.7639104 = 64.5834625 lux
- 10 foot-candles = 107.639104 lux — 10 × 10.7639104 = 107.639104 lux
Foot-candles to Lux conversion table
Every value below is calculated with the exact conversion factor and rounded for display.
| Foot-candles (fc) | Lux (lx) |
|---|---|
| 1 fc | 10.76391 lx |
| 2 fc | 21.527821 lx |
| 3 fc | 32.291731 lx |
| 4 fc | 43.055642 lx |
| 5 fc | 53.819552 lx |
| 6 fc | 64.583463 lx |
| 7 fc | 75.347373 lx |
| 8 fc | 86.111283 lx |
| 9 fc | 96.875194 lx |
| 10 fc | 107.6391 lx |
| 12 fc | 129.16693 lx |
| 15 fc | 161.45866 lx |
| 20 fc | 215.27821 lx |
| 25 fc | 269.09776 lx |
| 30 fc | 322.91731 lx |
| 50 fc | 538.19552 lx |
| 75 fc | 807.29328 lx |
| 100 fc | 1,076.391 lx |
| 500 fc | 5,381.9552 lx |
| 1,000 fc | 10,763.91 lx |
When you need to convert foot-candles to lux
- Comparing specifications written for a different market.
- Checking a figure quoted in an unfamiliar unit before acting on it.
- Converting values consistently across a spreadsheet, report or shopping list.
Common mistakes to avoid
- Dividing when you should multiply. Because 1 foot-candle = 10.7639 lux, the answer should be larger than the number you started with.
- Rounding too early. Convert first at full precision, then round the final answer to the precision the task actually needs.
How precise does the answer need to be?
Round only at the end, and only to the precision your task actually needs. The converter above keeps full double precision internally and rounds for display.
How these units are defined
- Foot-candle (fc): One lumen per square foot, standard in US lighting design. This unit's relationship to the SI base unit is exact by definition, so no rounding enters the conversion factor.
- Lux (lx): One lumen per square meter; the SI unit of illuminance. This unit's relationship to the SI base unit is exact by definition, so no rounding enters the conversion factor.
Related conversions
Frequently asked questions
- What is 1 foot-candle in lux?
- 1 foot-candle is equal to 10.7639104 lux.
- How many foot-candles are in one lux?
- There are 0.09290304 foot-candles in 1 lux.
- How do you convert foot-candles to lux?
- Multiply the number of foot-candles by 10.7639104 — or use the formula lx = fc × 10.7639104.
- What is 6 foot-candles in lux?
- 6 foot-candles is 64.5834625 lux. 6 × 10.7639104 = 64.5834625 lux.
- Is the foot-candles to lux conversion exact?
- Yes. The relationship is fixed by definition, so 10.7639104167 is an exact conversion factor — only the displayed result is rounded.