Enter the energy in Joules and the conversion factor into the calculator to determine the energy in MeV.

Joules To Mev Formula

The following formula is used to calculate energy in MeV from Joules.

E(MeV) = E(J) * 6.242 × 10^{12}


  • E(MeV) is the energy in mega electronvolts (MeV)
  • E(J) is the energy in joules (J)

To calculate the energy in MeV, multiply the energy in joules by the conversion factor 6.242 × 10^12.

What is a Joules To Mev?

Joules to MeV is a conversion between two units of energy. A joule is the standard unit of energy in the International System of Units (SI), widely used in many areas of science and engineering. On the other hand, a mega electronvolt (MeV) is a unit of energy commonly used in particle physics, where energy, mass and momentum are often expressed in electronvolts. The conversion factor between these two units is approximately 6.242 × 10^12 MeV per joule.

How to Calculate Joules To Mev?

The following steps outline how to calculate the Joules to MeV conversion using the formula: E(MeV) = E(J) * 6.242 × 10^12

  1. First, determine the energy in joules (E(J)).
  2. Next, multiply the energy in joules (E(J)) by 6.242 × 10^12.
  3. Finally, calculate the energy in mega electronvolts (E(MeV)).
  4. 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.

Energy in joules (E(J)) = 5