Candela to Lux Conversion Calculator
Candela to Lux calculatorIt is a conversion calculator that converts the luminous intensity in candela (cd) to illuminance in lux (lx). This calculator is equipped with two controls, the ‘Calculate’ and ‘Reset’ buttons that perform different functions. The first step is to enter the luminous intensity in candela. Proceed to the second text field and enter the distance before selecting the feet or meters. Afterwards, click on the ‘Calculate’ button to initiate the conversion. The illuminance result in lux will be displayed below the two controls. Before you perform new calculations, you will use the ‘Reset’ button to erase all the previous data from the text fields.
For example;If the luminous intensity in candela is 540 (cd) with a distance of 40 feet, find the illuminance result in lux.
SolutionIf you are using the calculator, you will enter 540 in the first text field for luminous intensity in candela and 40 as the distance respectively. Select feet as the unit of measurement before you click on the ‘Calculate’ button. The illuminance result in lux will be;
= 3.632819625 (lx)
If you were calculating the illuminance result using 540 cd and 40 meters (m), the result will be; 0.3375. Remember to select the feet or meters for accurate results. This calculator uses particular formula in executing the conversions.
Formula of calculating candela to lux
FeetEv (lx) = 10.76391 x I v (cd) / (d (ft)) 2, which means that the illuminance in lux is calculated by multiplying 10.76391 by the luminous intensity in candela. The result is then divided by the square distance from the light source in square feet.
MetersEv (lx) = I v (cd) / (d (m)) 2, which means that the illuminance in lux is computed by dividing the luminous intensity in candela by the square distance from the light source in square meters.
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