Convert Electronvolts to Petajoules
Convert Electronvolts (eV) to Petajoules (PJ) instantly and accurately.
Conversion Formula
PJ = eV × 1.602176634e-34
About Electronvolts
An electronvolt (eV) is the kinetic energy gained by one electron accelerated through 1 volt - exactly 1.602176634 × 10⁻¹⁹ J (fixed by the 2019 SI revision). It is the natural energy unit of atomic and particle physics: visible light photons carry 1.7-3.1 eV; hydrogen ionisation requires 13.6 eV; X-ray photons span 100 eV-100 keV; protons at the LHC reach 6.5 TeV. Rest masses use eV/c²: electron 0.511 MeV, proton 938.3 MeV, Higgs boson 125 GeV. Nuclear binding energy peaks at ~8 MeV/nucleon for iron-56. 1 eV = 1.602176634 × 10⁻¹⁹ J.
About Petajoules
A petajoule (PJ) is 10¹⁵ J - the national energy policy scale. IEA reports primary energy in PJ/year: Sweden ~600 PJ; Germany ~12,500 PJ; the United States ~93,000 PJ. World total primary energy supply is ~605,000 PJ = 605 EJ. The 1883 Krakatoa eruption released ~200 PJ ≈ 48 megatons TNT. A 1-megaton nuclear weapon releases 4.184 PJ. Global annual steel production embeds ~38,000-47,000 PJ of energy. 1 PJ = 10¹⁵ J = 277.78 GWh = 238.85 ktoe = 23.88 ktoe.
Quick Reference Table
| Electronvolts (eV) | Petajoules (PJ) |
|---|---|
| 1 eV | 1.602 × 10-34 PJ |
| 2 eV | 3.204 × 10-34 PJ |
| 5 eV | 8.011 × 10-34 PJ |
| 10 eV | 1.602 × 10-33 PJ |
| 25 eV | 4.005 × 10-33 PJ |
| 50 eV | 8.011 × 10-33 PJ |
| 100 eV | 1.602 × 10-32 PJ |