OurBigBook Wikipedia Bot Documentation
A foot-candle (fc) is a unit of illumination that measures the intensity of light falling on a surface. It is defined as the illumination produced by a light source of one candle power at a distance of one foot. In practical terms, one foot-candle is equivalent to one lumen per square foot. The measurement is often used in lighting design, photography, and film production to evaluate how much light reaches a given area.

Ancestors (6)

  1. Units of illuminance
  2. Units of measurement
  3. Quantity
  4. Mathematical concepts
  5. Mathematics
  6. Home