ENERGY CONVERSION
Joule to Electronvolt.
Convert joule (J) to electronvolt (eV), with the math explained.
1 J = 6.241509074e18 eV
THE MATH, MADE SIMPLE
How to convert joule to electronvolt
Multiply your joule value by 6.24150907446e18 to get the equivalent in electronvolt. Both units are normalized through the joule.
eV = J × 6.241509074e1810 J = 6.24150907446e19 eV
Result rounded to 12 significant digits. Change the precision in the calculator to suit your task.QUICK REFERENCE
J to eV conversion table
| Joule (J) | Electronvolt (eV) |
|---|---|
| 1 J | 6.24150907446e18 eV |
| 2 J | 1.24830181489e19 eV |
| 5 J | 3.12075453723e19 eV |
| 10 J | 6.24150907446e19 eV |
| 20 J | 1.24830181489e20 eV |
| 50 J | 3.12075453723e20 eV |
| 100 J | 6.24150907446e20 eV |
| 500 J | 3.12075453723e21 eV |
| 1,000 J | 6.24150907446e21 eV |
About the joule
The joule (J) is a unit of energy. One joule equals 1 joule (base unit) in this calculator.
All joule conversionsAbout the electronvolt
The electronvolt (eV) is a unit of energy. One electronvolt equals 1.602176634e-19 joule (base unit) in this calculator.
All electronvolt conversionsCommon questions
What is 1 J in eV?
One joule equals 6.24150907446e18 eV. Use the formula above for other values.
Why might another calculator show a different last digit?
Calculators may round at different stages or use different unit conventions. We keep full JavaScript numeric precision during calculation and round only for display. Choose up to 15 significant digits. Check US versus UK units and the notes for this category.
BROWSE BY UNIT