How to convert electronvolts to joules
Divide the value in electronvolts by 6.241509e18 (the same as multiplying by 1.602177e-19).
Example: 20 electronvolts = 20 × 1.602177e-19 = 3.204353e-18 joules.
Electronvolts to joules table
| electronvolts | joules |
|---|---|
| 0.01 | 1.602177e-21 |
| 0.1 | 1.602177e-20 |
| 0.5 | 8.010883e-20 |
| 1 | 1.602177e-19 |
| 2 | 3.204353e-19 |
| 3 | 4.80653e-19 |
| 4 | 6.408707e-19 |
| 5 | 8.010883e-19 |
| 6 | 9.61306e-19 |
| 7 | 1.121524e-18 |
| 8 | 1.281741e-18 |
| 9 | 1.441959e-18 |
| 10 | 1.602177e-18 |
| 15 | 2.403265e-18 |
| 20 | 3.204353e-18 |
| 25 | 4.005442e-18 |
| 30 | 4.80653e-18 |
| 50 | 8.010883e-18 |
| 75 | 1.201632e-17 |
| 100 | 1.602177e-17 |
| 250 | 4.005442e-17 |
| 500 | 8.010883e-17 |
| 1,000 | 1.602177e-16 |
What is a electronvolt?
The electronvolt (eV) is a unit of energy, equal to 1.602177e-19 joules.
What is a joule?
The joule (J) is a unit of energy, equal to 1 joule.
Frequently asked questions
How many joules are in 1 electronvolt?
1 electronvolt = 1.602177e-19 joules.
How do I convert electronvolts to joules?
Divide the value in electronvolts by 6.241509e18 (the same as multiplying by 1.602177e-19).
What is 20 eV in J?
20 electronvolts = 3.204353e-18 joules.