Electronvolts to Megajoules Converter

Convert electronvolts (eV) to megajoules (MJ) instantly. Energy conversions link food labels in kJ and kcal, SP Group bills in kWh and air-conditioner capacity in BTU.

Result

Megajoules
1.602177e-25 MJ

How to use the electronvolts to megajoules converter

  1. Enter the electronvolts (eV).
  2. The results update as you type, or press Calculate.
  3. Read the megajoules first, then the supporting figures below it.

Formula

Megajoules = electronvolts × 1.602177e-25

Worked example

For example, with these inputs:

the calculator returns:

Electronvolts to Megajoules table

ElectronvoltsMegajoules
1 eV1.602177e-25 MJ
2 eV3.204353e-25 MJ
5 eV8.010883e-25 MJ
10 eV1.602177e-24 MJ
20 eV3.204353e-24 MJ
25 eV4.005442e-24 MJ
50 eV8.010883e-24 MJ
100 eV1.602177e-23 MJ
250 eV4.005442e-23 MJ
500 eV8.010883e-23 MJ
1,000 eV1.602177e-22 MJ

About this conversion

Energy conversions link food labels in kJ and kcal, SP Group bills in kWh and air-conditioner capacity in BTU.

A conversion table is handy for common values, but a calculator is faster and avoids interpolation errors for anything in between.

For everyday use, three or four significant figures are usually enough. Engineering, science and trade documents may need more, and rounding should happen only at the end of a calculation.

Frequently asked questions

How many megajoules are in one electronvolt?

1 eV = 1.602177e-25 MJ.

How do I convert eV to MJ?

Megajoules = electronvolts × 1.602177e-25.

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