Enter the total signal power (watts) and the bit rate (bits per second) into the Energy Per Bit Calculator. The calculator will evaluate the Energy Per Bit.

## Energy Per Bit Formula

The following two example problems outline the steps and information needed to calculate the Energy Per Bit.

Eb = SP / BR

Variables:

- Eb is the Energy Per Bit (joules)
- SP is the total signal power (watts)
- BR is the bit rate (bits per second)

To calculate the energy per bit, divide the total signal power by the bit rate.

## How to Calculate Energy Per Bit?

The following steps outline how to calculate the Energy Per Bit.

- First, determine the total signal power (watts).
- Next, determine the bit rate (bits per second).
- Next, gather the formula from above = Eb = SP / BR.
- Finally, calculate the Energy Per Bit.
- 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 signal power (watts) = 50

bit rate (bits per second) = 30

Eb = SP / BR** **= ?