Lighting Lumen / Watt Calculator
Calculate the required lumens and LED power based on the room area.
m²
lux
lm/W
Result
6.000 lümen
Required light: 6.000 lumens (60 W LED)
Result in all units
Step-by-step solution
What Is a Lighting (Lumen) Calculation?
The lumen calculation is the process of finding the total amount of light and the LED power needed to adequately illuminate a space. It is based on the area and the desired brightness level.
How is it calculated?
How Is It Calculated?
Required lumens = area (m²) × desired brightness (lux)
- Enter the room area and the lux value according to the type of use.
- Required watts = lumens ÷ LED efficiency (lm/W).
Frequently Asked Questions
How many lux are needed for a living room?
100–300 lux is common for general lighting; a higher value is recommended for reading and work areas.