Electronvolt to Joule Converter
Convert Electronvolts to Joules
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How to Convert Electronvolts to Joules
To convert electronvolts (eV) to joules, multiply the number of electronvolts by 1.60218 x 10-19. This is because 1 electronvolt is the amount of kinetic energy gained by a single electron accelerating from rest through an electric potential difference of one volt in a vacuum.
Formula
Joules = Electronvolts × (1.60218 × 10-19)
or
J = eV × 1.60218e-19
Step-by-step process
- Take the measurement in electronvolts
- Multiply that number by 1.60218e-19
- The result is the equivalent energy in joules
Examples
- 100 eV = 100 × 1.60218e-19 = 1.60218 x 10-17 J
- 1,000 eV = 1,000 × 1.60218e-19 = 1.60218 x 10-16 J
- 1,000,000 eV = 1,000,000 × 1.60218e-19 = 1.60218 x 10-13 J
Common Electronvolts to Joules Conversions
Here is a table of common conversions for quick reference:
| Electronvolts (eV) | Joules (J) | Electronvolts (eV) | Joules (J) |
|---|---|---|---|
| 1 | 1.602e-19 | 1,000 | 1.602e-16 |
| 10 | 1.602e-18 | 10,000 | 1.602e-15 |
| 100 | 1.602e-17 | 100,000 | 1.602e-14 |
| 1,000 | 1.602e-16 | 1,000,000 | 1.602e-13 |
Other conversions from electronvolts
Electronvolts can be converted to various other units of energy. Here are some common conversions:
Frequently Asked Questions
How many electronvolts are in a joule?
There are approximately 6.242 x 1018 electronvolts in one joule.