1 electronvolt = 1.60218e-19 joules
Convert electronvolts to joules.
Both directions on one page — swap the units and the whole thing runs backwards.
Type a value, or “5cm to in”
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The formula
J = eV × 1.60218e-19
Worked through with a real value: 10 electronvolts = 1.60218e-18 joules.
Going the other way: eV = J × 6.24151e+18, so 1 joule = 6.24151e+18 electronvolts.
What each unit is
- electronvolt eV
- The energy a single electron gains when accelerated through one volt, fundamental in particle physics and solid-state physics.
- joule J
- The SI unit of energy, equal to the work done by a force of one newton acting over a distance of one metre.
Conversion tables
| electronvolts (eV) | joules (J) |
|---|---|
| 1 | 1.60218e-19 |
| 2 | 3.20435e-19 |
| 3 | 4.80653e-19 |
| 4 | 6.40871e-19 |
| 5 | 8.01088e-19 |
| 6 | 9.61306e-19 |
| 7 | 1.12152e-18 |
| 8 | 1.28174e-18 |
| 9 | 1.44196e-18 |
| 10 | 1.60218e-18 |
| 20 | 3.20435e-18 |
| 25 | 4.00544e-18 |
| 50 | 8.01088e-18 |
| 75 | 1.20163e-17 |
| 100 | 1.60218e-17 |
| joules (J) | electronvolts (eV) |
|---|---|
| 1 | 6.24151e+18 |
| 2 | 1.24830e+19 |
| 3 | 1.87245e+19 |
| 4 | 2.49660e+19 |
| 5 | 3.12075e+19 |
| 6 | 3.74491e+19 |
| 7 | 4.36906e+19 |
| 8 | 4.99321e+19 |
| 9 | 5.61736e+19 |
| 10 | 6.24151e+19 |
| 20 | 1.24830e+20 |
| 25 | 1.56038e+20 |
| 50 | 3.12075e+20 |
| 75 | 4.68113e+20 |
| 100 | 6.24151e+20 |
Questions
How many joules are in a electronvolt?
1 electronvolt = 1.60218e-19 joules.
How do I convert electronvolts to joules?
Use J = eV × 1.60218e-19. For example, 10 electronvolts = 1.60218e-18 joules.
How many electronvolts are in one joule?
1 joule = 6.24151e+18 electronvolts.
What is 10 electronvolts in joules?
10 electronvolts = 1.60218e-18 joules.
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