Illuminance Unit Converter Enter an illuminance value, select the original unit and the unit to convert to, then click "Convert". Illuminance Value: From Unit: Lux (lx) Foot-candle (fc) Phot (ph) Nox (nx) To Unit: Lux (lx) Foot-candle (fc) Phot (ph) Nox (nx) Convert Result: Step-by-step Solution: Post navigation #1 Free Radioactivity Unit Converter #1 Free Luminance Conversion 2025