Illuminance Converter
Convert between illuminance units including lux, foot-candles, phots, and more.
1 lux =
0.092903
Foot-candle (fc)
1 lux in all units
Lux (lx)1
Foot-candle (fc)0.092903
Phot (ph)0.0001
Lumen per sq meter (lm/m2)1
Lumen per sq cm (lm/cm2)0.0001
Lumen per sq foot (lm/ft2)0.092903
Milliphot (mph)0.1
Nox1,000
Quick Reference
1 foot-candle
= 10.76 lux
1 phot
= 10,000 lux
Office lighting
300-500 lux
Sunlight
~100,000 lux
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
📚
Formula Source: NIST Guide to SI Units
by National Institute of Standards
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.