Electron Volt to Joule Converter 2025 - eV to J Calculator | Thiyagi

Electron Volt to Joule Converter

Convert between electron volts and joules for atomic physics, quantum mechanics, and particle energy calculations

1 eV = 1.602×10⁻¹⁹ J
1 J = 6.242×10¹⁸ eV
Enter a value to see the conversion result

Energy Conversion Reference

Electron Volt ⇔ Joule
1 eV ⇔ 1.602×10⁻¹⁹ J
1 keV ⇔ 1.602×10⁻¹⁶ J
1 MeV ⇔ 1.602×10⁻¹³ J
1 GeV ⇔ 1.602×10⁻¹⁰ J
1 TeV ⇔ 1.602×10⁻⁷ J
1 PeV ⇔ 1.602×10⁻⁴ J

Physics Energy Examples

Atomic Scale Energies:
• Chemical bonds: 1-10 eV
• Ionization energy: 5-25 eV
• Visible light photon: 1.6-3.3 eV
• X-ray photon: 100 eV - 100 keV
Nuclear Physics:
• Alpha decay: 4-9 MeV
• Beta decay: 0.1-10 MeV
• Gamma rays: 0.1-10 MeV
• Nuclear binding: 7-9 MeV/nucleon
Particle Physics:
• Electron rest mass: 0.511 MeV
• Proton rest mass: 938.3 MeV
• LHC collisions: 13 TeV
• Cosmic ray maximum: 10²⁰ eV

Energy Units

  • Electron Volt: Energy gained by electron
  • Joule: SI unit of energy
  • Conversion: 1 eV = 1.602176634×10⁻¹⁹ J
  • Definition: 1 V potential difference

Usage Tips

  • eV for atomic scale
  • J for macroscopic energy
  • Common in quantum physics
  • Particle accelerator units

Applications

  • Atomic Physics: Energy levels
  • Nuclear Physics: Decay energies
  • Spectroscopy: Photon energies
  • Accelerators: Particle energies