Convert Electronvolts to Joules
1 electronvolt = 1.602177e-19 joules. Type any value below to convert in either direction — the calculation happens in your browser.
Electronvolts to Joules formula
Multiply the number of electronvolts by 1.602177e-19 to get joules.
joules = electronvolts × 1.602177e-19To go the other way: divide the number of joules by 1.602177e-19, or multiply by 6.241509e+18.
electronvolts = joules ÷ 1.602177e-19Electronvolts to Joules conversion table
| Electronvolts | Joules |
|---|---|
| 1 eV | 1.602177e-19 J |
| 2 eV | 3.204353e-19 J |
| 3 eV | 4.806530e-19 J |
| 4 eV | 6.408707e-19 J |
| 5 eV | 8.010883e-19 J |
| 6 eV | 9.613060e-19 J |
| 7 eV | 1.121524e-18 J |
| 8 eV | 1.281741e-18 J |
| 9 eV | 1.441959e-18 J |
| 10 eV | 1.602177e-18 J |
| 15 eV | 2.403265e-18 J |
| 20 eV | 3.204353e-18 J |
| 25 eV | 4.005442e-18 J |
| 30 eV | 4.806530e-18 J |
| 40 eV | 6.408707e-18 J |
| 50 eV | 8.010883e-18 J |
| 75 eV | 1.201632e-17 J |
| 100 eV | 1.602177e-17 J |
| 250 eV | 4.005442e-17 J |
| 500 eV | 8.010883e-17 J |
| 1,000 eV | 1.602177e-16 J |
Joules to Electronvolts conversion table
| Joules | Electronvolts |
|---|---|
| 1 J | 6.241509e+18 eV |
| 2 J | 1.248302e+19 eV |
| 3 J | 1.872453e+19 eV |
| 4 J | 2.496604e+19 eV |
| 5 J | 3.120755e+19 eV |
| 6 J | 3.744905e+19 eV |
| 7 J | 4.369056e+19 eV |
| 8 J | 4.993207e+19 eV |
| 9 J | 5.617358e+19 eV |
| 10 J | 6.241509e+19 eV |
About the electronvolt
An electronvolt is the energy gained by one electron crossing a one-volt potential, the natural unit of particle physics.
About the joule
The joule is the SI unit of energy — the work done by one newton acting over one metre.
Frequently asked questions
How many joules are in a electronvolt?
There are 1.602177e-19 joules in one electronvolt.
How many electronvolts are in a joule?
There are 6.241509e+18 electronvolts in one joule.
Is this conversion exact?
The ratio between the electronvolt and the joule is fixed by definition, so the conversion is exact — the figures shown here are rounded for readability only.
What is 10 electronvolts in joules?
10 electronvolts equals 1.602177e-18 joules.
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