1 electronvolt to joules
1 eV = 1.6022 × 10^-19 J. Change the amount below, or read the formula and the reference table further down.
1 electronvolt equals
joules
1 eV = 1.6022 × 10^-19 J
The formula
Electronvolts and joules both measure energy from the same zero, so a single multiplier does the job.
J = eV × 1.6022 × 10^-19
Going the other way? Convert joules to electronvolts.
Electronvolts to joules table
Values either side of 1 eV.
| Electronvolts (eV) | Joules (J) |
|---|---|
| -4 | -6.4087 × 10^-19 |
| -3.5 | -5.6076 × 10^-19 |
| -3 | -4.8065 × 10^-19 |
| -2.5 | -4.0054 × 10^-19 |
| -2 | -3.2044 × 10^-19 |
| -1.5 | -2.4033 × 10^-19 |
| -1 | -1.6022 × 10^-19 |
| -0.5 | -8.0109 × 10^-20 |
| 0 | 0 |
| 0.5 | 8.0109 × 10^-20 |
| 1 | 1.6022 × 10^-19 |
| 1.5 | 2.4033 × 10^-19 |
| 2 | 3.2044 × 10^-19 |
| 2.5 | 4.0054 × 10^-19 |
| 3 | 4.8065 × 10^-19 |
| 3.5 | 5.6076 × 10^-19 |
| 4 | 6.4087 × 10^-19 |
| 4.5 | 7.2098 × 10^-19 |
| 5 | 8.0109 × 10^-19 |
| 5.5 | 8.8120 × 10^-19 |
| 6 | 9.6131 × 10^-19 |
Questions people ask
- How many joules are in a electronvolt?
- One electronvolt equals 1.6022 × 10^-19 joules.
- How do I convert electronvolts to joules by hand?
- Multiply the number of electronvolts by 1.6022 × 10^-19. For a rough check, 1.6022 × 10^-19 is close enough for most everyday use.
- What is 1 electronvolt in joules?
- 1 electronvolt is 1.6022 × 10^-19 joules.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.