Joule to Electronvolt (J to eV)
Convert J to eV — Energy converter
One joule equals 6.242197e+18 eV, so to convert joules to electronvolts you multiply the value by 6.242197e+18. A joule is larger than a electronvolt — going the other way, 1 eV = 1.602000e-19 J. For example, 10 J = 6.242197e+19 eV and 50 J = 3.121099e+20 eV.
6.242197e+18Click to copy
1 J = 6.242197e+18 eV
Joule to Electronvolt formula
1 Joule = 6.242197e+18 eV
Worked examples
- 25 J = 1.560549e+20 eV
- 100 J = 6.242197e+20 eV
Joule to Electronvolt conversion table
| Joule (J) | Electronvolt (eV) |
|---|---|
| 1 | 6.242197e+18 |
| 2 | 1.248439e+19 |
| 3 | 1.872659e+19 |
| 5 | 3.121099e+19 |
| 8 | 4.993758e+19 |
| 10 | 6.242197e+19 |
| 12 | 7.490637e+19 |
| 15 | 9.363296e+19 |
| 20 | 1.248439e+20 |
| 25 | 1.560549e+20 |
| 50 | 3.121099e+20 |
| 100 | 6.242197e+20 |
| 250 | 1.560549e+21 |
| 500 | 3.121099e+21 |
| 1000 | 6.242197e+21 |
Frequently asked questions
How many electronvolts are in one joule?
One joule equals 6.242197e+18 electronvolts (eV).
How many joules are in one electronvolt?
One electronvolt equals 1.602000e-19 joules (J).
How do you convert joules to electronvolts?
1 Joule = 6.242197e+18 eV. Use the calculator above for any value.
What is 5 J in eV?
5 J = 3.121099e+19 eV.
What is 100 J in eV?
100 J = 6.242197e+20 eV.
What is 10 J in eV?
10 J = 6.242197e+19 eV.
What is 20 J in eV?
20 J = 1.248439e+20 eV.
Is a joule bigger than a electronvolt?
Yes. A joule is larger — one joule equals 6.242197e+18 electronvolts (eV).