๐Ÿ’ก Illuminance Converter

Lux (lux)1
Footcandle (fc)0.092903
Phot (phot)0.0001

Convert between lux, footcandles (fc), and phot in real time. Useful for checking lighting fixture specs or reference brightness levels for photo and video shoots.

How to use

  1. Enter a value into any illuminance unit field (lux, fc, or phot).
  2. The converted values appear instantly in the other unit fields.

FAQ

What's the difference between lux and footcandles (fc)?

Lux is the metric illuminance unit and fc is the imperial one. 1 fc is about 10.76 lux โ€” useful for comparing specs on imported lighting equipment.

Can this help compare office or factory lighting standards?

Yes โ€” it's useful for comparing local lighting standards given in lux against foreign standards given in fc.

What is a phot?

A phot is a CGS-system illuminance unit; 1 phot equals 10,000 lux. It's rarely used today.