Enter the total change in mass and the speed of light (m/s) into the Separation Energy Calculator. The calculator will evaluate the Separation Energy. 

Separation Energy Formula

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

SE = dM * c^2


  • SE is the Separation Energy
  • dM is the total change in mass 
  • c is the speed of light (m/s) 

How to Calculate Separation Energy?

The following steps outline how to calculate the Separation Energy.

  1. First, determine the total change in mass. 
  2. Next, determine the speed of light (m/s). 
  3. Next, gather the formula from above = SE = dM * c^2.
  4. Finally, calculate the Separation Energy.
  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 change in mass = 3.25

speed of light (m/s) = 299792458

SE = dM * c^2 = ?