Electronvolt (eV) Conversion Calculator
Joules (J)
1.602176634e-19
Kilojoules (kJ)
1.602176634e-22
Kilocalories (kcal)
3.829293394e-23
Electron Volts (meV)
1000
Understanding Electronvolts (eV)
An electronvolt (eV) is a unit of energy commonly used in atomic and nuclear physics. It represents the amount of kinetic energy gained by a single electron accelerating through an electric potential difference of one volt in a vacuum.
Key Facts About Electronvolts
- • 1 eV = 1.602176634 × 10⁻¹⁹ joules (exact)
- • Used extensively in particle physics and quantum mechanics
- • Common multiples include keV (10³ eV), MeV (10⁶ eV), and GeV (10⁹ eV)
Common Applications
Electronvolts are used to measure:
- • Binding energies in atoms and molecules
- • Energy levels in semiconductor devices
- • Particle accelerator energies