Unit fc
Name foot-candle
Category Illuminance
Details A foot-candle (fc) is a unit of illuminance in the field of lighting and optics, which measures the amount of light that reaches a surface. It is a non-metric unit and is commonly used in the United States to describe light intensity or brightness levels on surfaces.

One foot-candle is defined as the illuminance on a one-square-foot surface when a uniform light source emits a lumen of light from a distance of one foot. In other words, it represents the concentration of light (luminous flux) over an area, describing how much light a surface is receiving. Foot-candle is commonly used in industries like architecture, interior design, and cinematography to determine the appropriate lighting levels for various applications.

In the International System of Units (SI), the standard unit of illuminance is the lux (lx), where 1 foot-candle is equal to approximately 10.764 lux. While lux is more widely adopted worldwide, foot-candles continue to be used in certain countries and specific applications.
fc(foot-candle) to alx(attolux)fc(foot-candle) to aph(attophot)fc(foot-candle) to clx(centilux)fc(foot-candle) to cph(centiphot)fc(foot-candle) to dalx(decalux)fc(foot-candle) to daph(decaphot)fc(foot-candle) to dlx(decilux)fc(foot-candle) to dph(deciphot)fc(foot-candle) to Elx(exalux)fc(foot-candle) to Eph(exaphot)fc(foot-candle) to flx(femtolux)fc(foot-candle) to fph(femtophot)fc(foot-candle) to Glx(gigalux)fc(foot-candle) to Gph(gigaphot)fc(foot-candle) to hlx(hectolux)fc(foot-candle) to hph(hectophot)fc(foot-candle) to klx(kilolux)fc(foot-candle) to kph(kilophot)fc(foot-candle) to lm/am²(lumen per square attometre)fc(foot-candle) to lm/cm²(lumen per square centimetre)fc(foot-candle) to lm/dam²(lumen per square decametre)fc(foot-candle) to lm/dm²(lumen per square decimetre)fc(foot-candle) to lm/Em²(lumen per square exametre)fc(foot-candle) to lm/fm²(lumen per square femtometre)fc(foot-candle) to lm/ft²(lumen per square foot)fc(foot-candle) to lm/Gm²(lumen per square gigametre)fc(foot-candle) to lm/hm²(lumen per square hectometre)fc(foot-candle) to lm/in²(lumen per square inch)fc(foot-candle) to lm/km²(lumen per square kilometre)fc(foot-candle) to lm/Mm²(lumen per square megametre)fc(foot-candle) to lm/mm²(lumen per square millimetre)fc(foot-candle) to lm/m²(lumen per square metre)fc(foot-candle) to lm/nm²(lumen per square nanometre)fc(foot-candle) to lm/Pm²(lumen per square petametre)fc(foot-candle) to lm/pm²(lumen per square picometre)fc(foot-candle) to lm/Tm²(lumen per square terametre)fc(foot-candle) to lm/ym²(lumen per square yoctometre)fc(foot-candle) to lm/Ym²(lumen per square yottametre)fc(foot-candle) to lm/zm²(lumen per square zeptometre)fc(foot-candle) to lm/Zm²(lumen per square zettametre)fc(foot-candle) to lm/µm²(lumen per square micrometre)fc(foot-candle) to lx(lux)fc(foot-candle) to Mlx(megalux)fc(foot-candle) to mlx(millilux)fc(foot-candle) to Mph(megaphot)fc(foot-candle) to mph(milliphot)fc(foot-candle) to nlx(nanolux)fc(foot-candle) to nph(nanophot)fc(foot-candle) to nx(nox)fc(foot-candle) to ph(phot)fc(foot-candle) to Plx(petalux)fc(foot-candle) to plx(picolux)fc(foot-candle) to Pph(petaphot)fc(foot-candle) to pph(picophot)fc(foot-candle) to Tlx(teralux)fc(foot-candle) to Tph(teraphot)fc(foot-candle) to ylx(yoctolux)fc(foot-candle) to Ylx(yottalux)fc(foot-candle) to yph(yoctophot)fc(foot-candle) to Yph(yottaphot)fc(foot-candle) to zlx(zeptolux)fc(foot-candle) to Zlx(zettalux)fc(foot-candle) to zph(zeptophot)fc(foot-candle) to Zph(zettaphot)fc(foot-candle) to µlx(microlux)fc(foot-candle) to µph(microphot)