footcandle
unit of measurement
Also known as: foot-candle
Quick Summary
A foot-candle is a unit of illuminance, measuring the amount of light that falls on a surface. Specifically, it is the amount of light one foot away from a uniform point source of one candle. This is equivalent to one lumen per square foot.1
A footcandle meter is an instrument used to measure illuminance and is calibrated in footcandles. The metric equivalent is the lux, which is defined as one lumen per square meter. One lux is equal to approximately 0.0929 foot-candles.23
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