Online Calculators & Tools





Candela to lux calculator or converter

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

Candela to lux calculator

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:



Enter luminous intensity in candela: cd
Enter distance and select feet or meters:
   
Illuminance result in lux: lx



Candela to lux calculation with formulas

Candela to lux calculation with distance in feet

The illuminance Ev in lux (lx) is equal to 10.76391 times the luminous intensity Iv in candela (cd),

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

Ev(lx) = 10.76391 × Iv(cd) / (d(ft))2

Candela to lux calculation with distance in meters

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

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

Ev(lx) = Iv(cd) / (d(m))2