Lux to Foot-candles Converter
Convert lux to foot-candles instantly with this free lux to foot-candles converter. Enter any value to get an accurate illumination conversion, plus the formula, the conversion factor and a full reference table.
What is 1 lux in foot-candles?
1 lux is equal to exactly 0.09290304 foot-candles.
1 ÷ 10.7639104 = 0.09290304 foot-candles
1 lux = 0.09290304 foot-candles
Lux to Foot-candles formula
fc = lx ÷ 10.7639104
The lux to foot-candles conversion factor is 0.09290304, which is exact by definition. 1 lux = 0.09290304 foot-candles, and 1 foot-candle = 10.7639104167 lux.
Worked examples
- 2 lux = 0.18580608 foot-candles — 2 ÷ 10.7639104 = 0.18580608 foot-candles
- 6 lux = 0.55741824 foot-candles — 6 ÷ 10.7639104 = 0.55741824 foot-candles
- 10 lux = 0.9290304 foot-candles — 10 ÷ 10.7639104 = 0.9290304 foot-candles
Lux to Foot-candles conversion table
Every value below is calculated with the exact conversion factor and rounded for display.
| Lux (lx) | Foot-candles (fc) |
|---|---|
| 1 lx | 0.09290304 fc |
| 2 lx | 0.18580608 fc |
| 3 lx | 0.27870912 fc |
| 4 lx | 0.37161216 fc |
| 5 lx | 0.4645152 fc |
| 6 lx | 0.55741824 fc |
| 7 lx | 0.65032128 fc |
| 8 lx | 0.74322432 fc |
| 9 lx | 0.83612736 fc |
| 10 lx | 0.9290304 fc |
| 12 lx | 1.1148365 fc |
| 15 lx | 1.3935456 fc |
| 20 lx | 1.8580608 fc |
| 25 lx | 2.322576 fc |
| 30 lx | 2.7870912 fc |
| 50 lx | 4.645152 fc |
| 75 lx | 6.967728 fc |
| 100 lx | 9.290304 fc |
| 500 lx | 46.45152 fc |
| 1,000 lx | 92.90304 fc |
When you need to convert lux to foot-candles
- 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 lux = 0.092903 foot-candles, the answer should be smaller 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
- 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.
- 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.
Related conversions
Frequently asked questions
- What is 1 lux in foot-candles?
- 1 lux is equal to 0.09290304 foot-candles.
- How many lux are in one foot-candle?
- There are 10.7639104 lux in 1 foot-candle.
- How do you convert lux to foot-candles?
- Multiply the number of lux by 0.09290304 — or use the formula fc = lx ÷ 10.7639104.
- What is 6 lux in foot-candles?
- 6 lux is 0.55741824 foot-candles. 6 ÷ 10.7639104 = 0.55741824 foot-candles.
- Is the lux to foot-candles conversion exact?
- Yes. The relationship is fixed by definition, so 0.09290304 is an exact conversion factor — only the displayed result is rounded.