Enter the total lux (lx) and the total power (watts) into the Calculator. The calculator will evaluate the Lux Per Watt.

## Lux Per Watt Formula

LPW = L / W

Variables:

- LPW is the Lux Per Watt (lux/watt)
- L is the total lux (lx)
- W is the total power (watts)

To calculate Lux Per Watt, divide the total lux by the power in watts.

## How to Calculate Lux Per Watt?

The following steps outline how to calculate the Lux Per Watt.

- First, determine the total lux (lx).
- Next, determine the total power (watts).
- Next, gather the formula from above = LPW = L / W.
- Finally, calculate the Lux Per Watt.
- After inserting the variables and calculating the result, check your answer with the calculator above.

**Example Problem : **

Use the following variables as an example problem to test your knowledge.

total lux (lx) = 50

total power (watts) = 40