Illuminance converter
Illuminance is the light falling on a surface, measured in lux (lumens per square metre). Offices need about 300–500 lux and living rooms 100–300. The lumens on a bulb are its total light output, not the brightness on a surface.
Common conversions
1 lux equals
| foot-candle (fc) | 0.092903 |
|---|---|
| kilolux (klx) | 0.001 |
| phot (ph) | 0.0001 |
Every Illuminance conversion
lux (lx)
foot-candle (fc)
kilolux (klx)
About Illuminance units
- lux (lx)
- Lumens per square metre — used to specify room and desk lighting.
- foot-candle (fc)
- Lumens per square foot, used in the US.
- kilolux (klx)
- Used for daylight (about 10–100 klx outdoors).
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