Enter the frequency corresponding to the energy difference (hz) into the Energy Difference Calculator. The calculator will evaluate the Energy Difference.

## Energy Difference Formula

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

dE = h*c/f

Variables:

- dE is the Energy Difference (Joules)
- f is the frequency corresponding to the energy difference (hz)
- h is Planck’s Constant (6.626 * 10^-34 J)
- c is the speed of light (2.998 * 10^8 m/s)

To calculate the energy difference, multiply Planck’s constant by the speed of light, then divide by the frequency of of the energy difference.

## How to Calculate Energy Difference?

The following steps outline how to calculate the Energy Difference.

- First, determine the frequency corresponding to the energy difference (hz).
- Next, gather the formula from above = dE = h*c/f.
- Finally, calculate the Energy Difference.
- 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.

frequency corresponding to the energy difference (hz) = 300

dE = h*c/f** **= ?