How to convert lux to candela

 

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 Ev in lux (lx),

times the square distance from the light source d2 in square feet (ft2):

Iv(cd) = 0.09290304 × Ev(lx) × (d(ft))2

So

candela = 0.09290304 × lux × square feet

Or

cd = 0.09290304 × lx × ft2

Lux to candela calculation with distance in meters

The luminous intensity Iv in candela (cd) is equal to the illuminance Ev in lux (lx),

times the square distance from the light source d2 in square meters (m2):

Iv(cd) = Ev(lx) × (d(m))2

So

candela = lux × square meters

Or

cd = lx × m2

 

Candela to lux caluclation ►

 

See also

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