Electronvolt
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Energy gained by an electron through 1 volt potential
About Electronvolt (eV)
The energy gained by a single electron crossing a one-volt electric potential difference, equal to approximately 1.602 x 10^-19 joules. Particle physicists use electronvolts and their multiples (keV, MeV, GeV, TeV) to express particle energies and rest masses -- the proton mass is about 938.3 MeV.
- Category
- Energy
- Symbol
- eV
- Also known as
- electronvolts electron volt electron-volt
CONVERT TO
Frequently Asked Questions
What is a Electronvolt (eV)?
Energy gained by an electron through 1 volt potential
How many Joule (J) are in one Electronvolt (eV)?
One Electronvolt (eV) equals 1.602177 × 10⁻¹⁹ Joule (J).
How many Kilojoule (kJ) are in one Electronvolt (eV)?
One Electronvolt (eV) equals 1.602177 × 10⁻²² Kilojoule (kJ).
How many Megajoule (MJ) are in one Electronvolt (eV)?
One Electronvolt (eV) equals 1.602177 × 10⁻²⁵ Megajoule (MJ).
How do I convert Electronvolt to Joule?
To convert Electronvolt to Joule, multiply the value by 1.602177 × 10⁻¹⁹ (1 eV = 1.602177 × 10⁻¹⁹ J).