Illuminance Converter
Result:
Supported units
Convert between lux (lx), foot-candle (fc), phot (ph), and SI-prefixed lux (mlx, klx, Mlx). Exact relationships are used, including 1 fc = 10.76391 lux.
Popular pairs
- lux <-> foot-candle
- lux <-> phot
- mlx <-> lux
How to use
Pick your from/to units using the search boxes, enter a value, and the result updates instantly. Use the copy button to grab the output.
Related converters
- Luminous Flux Converter (lumens)
- Luminous Intensity Converter (candela)
- Luminous Exposure Converter
Illuminance Converter FAQ
Are the conversions exact?
Yes. We use exact relationships like 1 foot-candle = 10.76391 lux for consistent results.
Can I convert between lux and foot-candle?
Yes. Enter your value in lux and select foot-candle as the target (or vice versa); results update instantly as you type.
Does this handle very low or high illuminance?
Yes. You can convert down to mililux or up to megalux with high precision using Decimal arithmetic.