Convert joules to electronvolts
joules to electronvolts. Enter a value to convert, or use the joules to electronvolts chart further down the page.
1 joule equals 6.24151e18 electronvolts. Going the other way, 1 electronvolt = 1.60218e-19 joules.
How to convert joules to electronvolts
To convert joules to electronvolts, multiply the joule value by 6.241509074e18. You can also divide by 1.602176634e-19 to get the same answer.
eV = J × 6.241509074e18
Worked example
Convert 15 J to electronvolts:
15 J = 9.36226e19 eV
joules to electronvolts conversion chart
Use this joules to electronvolts table for quick reference without typing anything.
| joules (J) | electronvolts (eV) |
|---|---|
| 0.01 J | 6.24151e16 eV |
| 0.1 J | 6.24151e17 eV |
| 1 J | 6.24151e18 eV |
| 2 J | 1.2483e19 eV |
| 3 J | 1.87245e19 eV |
| 5 J | 3.12075e19 eV |
| 10 J | 6.24151e19 eV |
| 20 J | 1.2483e20 eV |
| 50 J | 3.12075e20 eV |
| 100 J | 6.24151e20 eV |
| 1,000 J | 6.24151e21 eV |
What is a joule?
The joule is the SI unit of energy: the work done by a force of one newton acting over one meter.
What is a electronvolt?
The electronvolt (eV) is a unit of energy equal to 1.602176634e-19 joules.
Frequently asked questions
How many electronvolts are in a joule?
1 joules equals 6.24151e18 electronvolts. Going the other way, 1 electronvolts is 1.60218e-19 joules.
How do you convert joules to electronvolts?
To convert joules to electronvolts, multiply the joule value by 6.241509074e18. You can also divide by 1.602176634e-19 to get the same answer.
What is 10 joules in electronvolts?
10 joules equals 6.24151e19 electronvolts. The conversion chart on this page lists the other values people look up most often.
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