# Candela to lux calculator

Luminous intensity in candela (cd) to illuminance in lux (lx) calculator and how to calculate.

Enter the luminous intensity in candela, distance from light source, select feet or meters and press the *Calculate* button to get the illuminance in lux:

#### Candela to lux calculation with distance in feet

The illuminance *E*_{v} in lux (lx) is equal
to 10.76391 times the luminous intensity *I*_{v} in candela (cd),

divided by the square distance from the light source *d*^{2} in square feet (ft^{2}):

*E*_{v(lx)} = 10.76391 Ã—* I*_{v(cd)} / (*d*_{(ft)})^{2}

_{So}

lux = 10.76391 Ã—* *candela / square feet

_{Or}

lx = 10.76391 Ã—* *cd / ft^{2}

#### Candela to lux calculation with distance in meters

The illuminance *E*_{v} in lux (lx) is equal to the luminous intensity *I*_{v} in candela (cd),

divided by the square distance from the light source *d*^{2} in square meters (m^{2}):

*E*_{v(lx)} = *I*_{v(cd)} / (*d*_{(m)})^{2}

_{So}

lux = candela / square meters

_{Or}

lx = cd / m^{2}