Kilojoule to Electron-volt Conversion
Convert between Kilojoule and Electron-volt quickly and accurately.
How to Convert Kilojoule to Electron-volt
Conversion Formula
Example
Convert 15 kJ to eV:
Unit Information
Learn about the energy units you're converting between
Kilojoule
kJ
Definition
A kilojoule (symbol: kJ) is a unit of energy equal to 1,000 joules. It is commonly used for measuring larger amounts of energy in food, exercise, and industrial applications. One kilojoule equals approximately 0.239 kilocalories.
History/Origin
The kilojoule was introduced as a practical unit for measuring larger energy quantities in the metric system. It became widely used in the late 20th century for food labeling and energy consumption measurements.
Current Use
Kilojoules are extensively used in nutrition labeling worldwide, exercise physiology for measuring energy expenditure, industrial energy consumption monitoring, and scientific research for measuring moderate energy quantities.
Multiplier
1000
Offset
0
Electron-volt
eV
Definition
An electron-volt (symbol: eV) is a unit of energy used in atomic and particle physics, equal to approximately 1.602 × 10^-19 joules. It represents the kinetic energy gained by an electron when accelerated through a potential difference of one volt.
History/Origin
The electron-volt was introduced in the early 20th century for describing atomic and particle energies. It became essential in atomic physics, quantum mechanics, and particle physics research, providing a convenient energy scale for subatomic particles.
Current Use
Electron-volts are used in atomic physics for describing atomic energy levels, in particle physics for measuring particle energies, in semiconductor physics for band gap energies, and in nuclear physics for nuclear reaction energies.
Multiplier
2E-19
Offset
0
Kilojoule to Electron-volt Conversion Table
| Kilojoule [kJ] | Electron-volt [eV] |
|---|---|
| 1 kJ | 6E+21 eV |
| 10 kJ | 6E+22 eV |
| 25 kJ | 2E+23 eV |
| 50 kJ | 3E+23 eV |
| 100 kJ | 6E+23 eV |
| 0 kJ | 0E+0 eV |
| -10 kJ | -6E+22 eV |
| -40 kJ | -3E+23 eV |
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