Convert joules to electronvolts
1 J = 6241509074460000000 eV — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
6.24150907446e+18eV
As a fraction: 5000000000000000000000000000/801088317
1 J = 6241509074460000000 eV
How to convert joules to electronvolts
Multiply the number of joules by 6241509074460000000 to get electronvolts.
Electronvolt: Exactly 1.602 176 634 × 10⁻¹⁹ J since the 2019 SI redefinition.
Joule to Electronvolt conversion table
| Joules (J) | Electronvolts (eV) |
|---|---|
| 1 J | 6.2415091e+18 |
| 2 J | 1.2483018e+19 |
| 3 J | 1.8724527e+19 |
| 5 J | 3.1207545e+19 |
| 10 J | 6.2415091e+19 |
| 20 J | 1.2483018e+20 |
| 25 J | 1.5603773e+20 |
| 50 J | 3.1207545e+20 |
| 100 J | 6.2415091e+20 |
| 250 J | 1.5603773e+21 |
| 500 J | 3.1207545e+21 |
| 1000 J | 6.2415091e+21 |
Electronvolt to Joule conversion table
| Electronvolts (eV) | Joules (J) |
|---|---|
| 1 eV | 1.6021766e-19 |
| 2 eV | 3.2043533e-19 |
| 3 eV | 4.8065299e-19 |
| 5 eV | 8.0108832e-19 |
| 10 eV | 1.6021766e-18 |
| 20 eV | 3.2043533e-18 |
| 25 eV | 4.0054416e-18 |
| 50 eV | 8.0108832e-18 |
| 100 eV | 1.6021766e-17 |
| 250 eV | 4.0054416e-17 |
| 500 eV | 8.0108832e-17 |
| 1000 eV | 1.6021766e-16 |
Frequently asked
How many electronvolts are in a joule?
One joule equals 6.241509074e+18 electronvolts (J → eV). That figure is exact, not rounded.
How do you convert joules to electronvolts?
Multiply the number of joules by 6241509074460000000 to get electronvolts.
What is 1 eV in joules?
One electronvolt is 1.602176634e-19 joules.
What is 10 J in eV?
10 J = 6.2415091e+19 eV.
What exactly is a electronvolt?
Exactly 1.602 176 634 × 10⁻¹⁹ J since the 2019 SI redefinition.