Enter the total energy (J) and power (w) into the Calculator. The calculator will evaluate the Energy Time. 

Energy Time Formula

t = E / P


  • t is the Energy Time (seconds)
  • E is the total energy (J)
  • P is the total power (w)

To calculate time from energy, divide the total energy by the total power.

How to Calculate Energy Time?

The following steps outline how to calculate the Energy Time.

  1. First, determine the total energy (J). 
  2. Next, determine the total power (w). 
  3. Next, gather the formula from above = t = E / P.
  4. Finally, calculate the Energy Time.
  5. 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 energy (J) = 72348

total power (w) = 1203