Electronvolts (eV) to Kilojoules (kJ) 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).
Kilojoules
The kilojoule (kJ) is a unit of energy equal to exactly 1,000 joules. It is the standard unit for expressing food energy in most countries outside the United States, where food labels display energy in both kilojoules and kilocalories (kcal). One kilocalorie equals exactly 4.184 kilojoules. In thermodynamics and chemistry, reaction enthalpies and bond energies are commonly tabulated in kilojoules per mole (kJ/mol).
| Electronvolts (eV) | Kilojoules (kJ) |
|---|---|
| 0.1 eV | 0.000000000000000000000016 kJ |
| 1 eV | 0.00000000000000000000016 kJ |
| 2 eV | 0.00000000000000000000032 kJ |
| 3 eV | 0.000000000000000000000481 kJ |
| 5 eV | 0.000000000000000000000801 kJ |
| 10 eV | 0.0000000000000000000016 kJ |
| 20 eV | 0.0000000000000000000032 kJ |
| 30 eV | 0.00000000000000000000481 kJ |
| 50 eV | 0.00000000000000000000801 kJ |
| 100 eV | 0.000000000000000000016 kJ |
| 1000 eV | 0.00000000000000000016 kJ |
Frequently Asked Questions (FAQ)
How many kilojoules are in 1 electronvolts?
1 electronvolts (eV) is exactly 0 kilojoules (kJ).
How do I convert electronvolts to kilojoules?
Multiply the value in electronvolts by 0 to get the result in kilojoules. Or use the converter above — type any number and see the result instantly.