Illuminance Converter

Choose a conversion from 3 Illuminance units.

Illuminance measures the amount of light falling on a surface per unit area. It is measured in lux (lx) in the SI system. Full daylight typically provides 10,000-25,000 lux, while a well-lit office has about 500 lux.

Available Units

lx

Lux

fc

Foot-candle

ph

Phot

All Conversions