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Lux to candela calculator

Illuminance in lux (lx) to luminous intensity in candela (cd) calculator and how to calculate.

Enter the illuminance in lux, distance from light source, select feet or meters and press the Calculate button

to get the luminous intensity in candela:

Enter illuminance in lux: lx
Enter distance and select feet or meters:
   
Luminous intensity result in candela: cd

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h2>Lux to candela calculation

Lux to candela calculation with distance in feet

The luminous intensity Iv in candela (cd) is equal 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