Online Lumens to lux Calculator

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Lumens to lux calculator

Luminous flux in lumens (lm) to illuminance in lux (lx) calculator and how to calculate.

Enter the luminous flux in lumens, select area unit type, enter radius in meters for spherical light source or surface area

in square meters for any light source and press the Calculate button to get the illuminance in lux:

Enter luminous flux in lumens: lm
Select area unit type:  
Enter spherical radius:
Or enter surface area:
   
Illuminance result in lux: lx