How to convert electronvolts to joules
One electronvolt equals 1.602177e-19 joules – put the other way, one joule is 6.241509e+18 electronvolts. So divide the number of electronvolts by 6.241509e+18. For example, 5 eV ÷ 6.241509e+18 = 8.010883e-19 J.
Electronvolts to joules table
| Electronvolts (eV) | Joules (J) |
|---|---|
| 0.1 eV | 1.602177e-20 J |
| 0.5 eV | 8.010883e-20 J |
| 1 eV | 1.602177e-19 J |
| 2 eV | 3.204353e-19 J |
| 3 eV | 4.80653e-19 J |
| 4 eV | 6.408707e-19 J |
| 5 eV | 8.010883e-19 J |
| 6 eV | 9.61306e-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 | 4.80653e-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 |
Need it the other way? Use the joules to electronvolts converter, or the unit converter for any other energy unit.
Questions
How many joules are in a electronvolt?
1 eV = 1.602177e-19 J.
How many electronvolts are in a joule?
1 J = 6.241509e+18 eV.
What is 10 eV in J?
10 eV = 1.602177e-18 J.