Free Online Illuminance Converter
Convert between lux, foot-candle, phot, lumen/m², and nox instantly online.
Illuminance Converter
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Frequently Asked Questions (FAQs)
Illuminance measures how much light falls on a surface area, expressed in lux (lx).
The SI unit of illuminance is lux (lx), equal to 1 lumen per square meter.
1 foot-candle = 10.7639 lux.
A phot is a CGS unit of illuminance, equal to 10,000 lux.
Nox is a non-SI unit of illuminance, equal to 0.001 lux.
It is used in lighting design, photography, agriculture, workplace safety, and environmental studies.
