Convert Electronvolt to Megajoule
Convert electronvolts to megajoules by entering a value below.
How to Convert Electronvolts to Megajoules
The electronvolt and megajoule are both units of energy. By definition, 1 megajoule equals exactly 6.2415090745e24 electronvolts. This means to convert electronvolts to megajoules, you divide by 6.2415090745e24.
Formula
Step-by-Step Example
Convert 5 eV to megajoules:
We need to convert electronvolts to megajoules
Since 1 MJ = 6.2415090745e24 eV, divide by 6.2415090745e24
5 ÷ 6.2415090745e24 = 8.01088317e-25
5 eV = 8.01088317e-25 MJ
Electronvolt to Megajoule Conversion Table
Quick reference table for common electronvolt to megajoule conversions. Click any value for detailed calculation.
| Electronvolts (eV) | Megajoules (MJ) |
|---|---|
| 0.1 eV | 1.602176634e-26 MJ |
| 0.5 eV | 8.01088317e-26 MJ |
| 1 eV | 1.602176634e-25 MJ |
| 2 eV | 3.204353268e-25 MJ |
| 5 eV | 8.01088317e-25 MJ |
| 10 eV | 1.602176634e-24 MJ |
| 25 eV | 4.005441585e-24 MJ |
| 50 eV | 8.01088317e-24 MJ |
| 100 eV | 1.602176634e-23 MJ |
About These Units
Electronvolt (eV)
An electronvolt (eV) is the energy gained by an electron accelerated through 1 volt potential difference, equal to 1.602×10⁻¹⁹ joules. Electronvolts measure atomic and molecular energies, photon energy (visible light: 1.6-3.3 eV), and particle physics. X-rays range from 100 eV to 100 keV.
Megajoule (MJ)
A megajoule (MJ) equals 1,000,000 joules or approximately 0.278 kilowatt-hours. Megajoules measure fuel energy content (gasoline: ~34 MJ/liter), industrial processes, and large-scale energy consumption. One MJ equals about 239 kilocalories.
Frequently Asked Questions
How do I convert electronvolts to megajoules?
To convert electronvolts to megajoules, divide the value by 6.2415090745e24. For example, 10 eV = 1.602176634e-24 MJ.
How many megajoules are in 1 electronvolt?
1 electronvolt equals 1.602176634e-25 megajoules.
What is the formula for electronvolts to megajoules?
The formula is: MJ = eV ÷ 6.2415090745e24.