Enter the change in dB and the change in power (watts) into the Calculator. The calculator will evaluate the Db Per Watt.

## Db Per Watt Formula

dBW = dB/P

Variables:

- dBW is the Db Per Watt (dB/watts)
- dB is the change in dB
- P is the change in power (watts)

To calculate Db Per Watt, divide the change in decibels by the change in power.

## How to Calculate Db Per Watt?

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

- First, determine the change in dB.
- Next, determine the change in power (watts).
- Next, gather the formula from above = dBW = dB/P.
- Finally, calculate the Db 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.

change in dB = 90

change in power (watts) = 10