Electronvolts (eV) to Megajoules (MJ) Conversion
Electronvolts
The electronvolt (eV) is a unit of energy equal to exactly 1.602176634 × 10⁻¹⁹ joules, defined as the kinetic energy gained by a single electron accelerated through a potential difference of one volt. It is the standard unit in particle physics, atomic physics, and solid-state physics. Visible light photons carry 1.8–3.1 eV of energy; X-ray photons carry 100 eV to 100 keV; the proton beams at CERN's LHC reach 6.5 teraelectronvolts (TeV).
Megajoules
The megajoule (MJ) is a unit of energy equal to exactly 1,000,000 joules (10⁶ J). It is used in energy policy, engineering, and physics for large-scale energy quantities. One kilowatt-hour (kWh) equals exactly 3.6 MJ — the conversion fundamental to understanding electricity bills. A litre of petrol contains approximately 34 MJ of chemical energy. The explosive yield of conventional explosives is sometimes expressed in megajoules.
| Electronvolts (eV) | Megajoules (MJ) |
|---|---|
| 0.1 eV | 1.602176634E-26 MJ |
| 1 eV | 1.602176634E-25 MJ |
| 2 eV | 3.204353268E-25 MJ |
| 3 eV | 4.806529902E-25 MJ |
| 5 eV | 8.01088317E-25 MJ |
| 10 eV | 1.602176634E-24 MJ |
| 20 eV | 3.204353268E-24 MJ |
| 30 eV | 4.806529902E-24 MJ |
| 50 eV | 8.01088317E-24 MJ |
| 100 eV | 1.602176634E-23 MJ |
| 1000 eV | 1.602176634E-22 MJ |