How to convert illuminance in lux (lx) to luminous intensity in candela (cd).

You can calculate candela from lux and distance from light source.

You can't convert lux to candela, since candela and lux do not represent the same quantity.

## Lux to candela calculation

### Lux to candela calculation with distance in feet

to 0.09290304*times the illuminance*

*E*

_{v}in lux (lx),

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

*I*_{v(cd)} = 0.09290304* *×* E*_{v(lx)} × (*d*_{(ft)})^{2}

_{So}

candela = 0.09290304* *×* *lux × square feet

_{Or}

cd = 0.09290304* *×* *lx × ft^{2}

### Lux to candela calculation with distance in meters

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

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

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

_{So}

candela = lux × square meters

_{Or}

cd = lx × m^{2}

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