Illuminance Converter (Lux, Foot-candle)
Convert illuminance units instantly: lux, kilolux, foot-candle, phot, nox and more. Precise factors, all units shown at once.
| Unit | Value |
|---|---|
| lux (lx) | |
| kilolux (klx) | |
| foot-candle (fc) | |
| phot (ph) | |
| nox (nx) |
Tip: double-click a row to convert from that unit. Click a value to copy it. Expressions like 3*12 are accepted.
How to use the Illuminance Converter
- Type the value you want to convert (expressions are allowed).
- Choose the unit you are converting from.
- Read the result in every other unit in the table โ it updates as you type.
About this tool
Enter a value and choose its unit; the illuminance is converted to all 5 supported units simultaneously. Conversions use exact definitions where they exist (e.g. 1 inch = 25.4 mm, 1 lb = 0.453 592 37 kg).
Common conversions
| 1 lx = 0.001 klx | 1 klx = 1000 lx |
| 1 lx = 0.09290304 fc | 1 fc = 10.76391042 lx |
| 1 lx = 0.0001 ph | 1 ph = 10โฏ000 lx |
| 1 lx = 1000 nx | 1 nx = 0.001 lx |