Ergs to Electronvolts (eV) Converter
Enter a value to instantly convert between energy units.
1 Erg = 6.2415e+11 Electronvolt
Key Formulas
Kilocalorie → Kilojoule
kJ = kcal × 4.184Kilojoule → Kilocalorie
kcal = kJ × 0.239006Kilowatt-Hour → Joule
J = kWh × 3600000Joule → Kilowatt-Hour
kWh = J × 2.77778e-7Formula
eV = erg × 6.241509e+11One erg equals 6.24 × 10¹¹ electronvolts. Both ergs and eV are tiny-scale units: erg is the CGS energy unit, and eV is the atomic/particle scale unit. Converting ergs to eV is useful when bridging astrophysical energy measurements (in ergs) with particle physics (in eV). For example, cosmic ray energies or stellar fusion reactions can be expressed in either system.
Source: NIST SP 811, Table B.8
Frequently Asked Questions
Real-World Examples
A particle detector records 10⁻¹² erg of ionization energy — equivalent to 624 eV, typical for X-ray photons.
1e-12 erg = 624.15 eV
A cosmic ray interaction releases 10⁻¹⁰ erg — 62,415 eV or 62.4 keV — bridging astrophysics and particle physics.
1e-10 erg = 62415 eV
A molecular binding reaction stores 10⁻²⁰ erg — 6.24 eV per bond — used in computational chemistry.
1e-20 erg = 6.24 eV
A high-energy collision produces 10⁻¹⁴ erg — 6.24 MeV — showing how ergs and eV span atomic to nuclear scales.
1e-14 erg = 6240000 eV