Electronvolts to Joules
Convert electronvolts to joules for particle physics, atomic physics, photons, semiconductors, and quantum energy values.
How to convert eV to J
To convert a value from electronvolts (eV) to joules (J), enter the number in the converter above. Use the swap control if you need the reverse direction.
x is the source value in eV; y is the result in J.
Popular conversions
Quick answers for common eV to J values are available from the related conversion pages.
Use the related tools section for fixed-value conversions and the reverse direction.
Common conversion table
Quick reference table for common eV to J values:
| eV | J |
|---|---|
| 1 | 1.6022e-19 |
| 5 | 8.0109e-19 |
| 10 | 1.6022e-18 |
| 50 | 8.0109e-18 |
| 100 | 1.6022e-17 |
| 1,000 | 1.6022e-16 |
About electronvolts
Electronvolt (eV) — One electronvolt is exactly 1.602176634 x 10^-19 joules, based on the exact elementary charge.
Common uses: Electronvolts are used in particle physics, atomic physics, photon energy, semiconductor band gaps, and quantum-scale energy values.
About joules
Joule (J) — The joule is the SI derived unit of energy. One joule is one watt-second.
Common uses: Joules are used in physics, chemistry, engineering, mechanics, heat energy, and SI energy specifications.
Frequently Asked Questions
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