Kilojoules to electronvolts converter
Electronvolts (eV)
1 kilojoule = 6.241509e+21 electronvolts
How to convert kilojoules to electronvolts
eV = kJ × 6.24150907446 × 10^21
Multiply the number of kilojoules by 6.24150907446 × 10^21 to get electronvolts. Going the other way, divide by 6.24150907446 × 10^21 (or multiply by 1.602176634 × 10^-22).
One kilojoule is exactly defined as 6.24150907446 × 10^21 electronvolts (to 12 significant figures), and one electronvolt is 1.602176634 × 10^-22 kilojoules.
Worked examples
- Convert 5 kilojoules: 5 × 6.24150907446 × 10^21 = 3.120755e+22 3.120755e+22 electronvolts.
- Convert 12.5 kilojoules: 12.5 × 6.24150907446 × 10^21 = 7.801886e+22 7.801886e+22 electronvolts.
- Convert 250 kilojoules: 250 × 6.24150907446 × 10^21 = 1.560377e+24 1.560377e+24 electronvolts.
Quick-reference table
| kJ | eV |
|---|---|
| 1 | 6.241509e+21 |
| 2 | 1.248302e+22 |
| 3 | 1.872453e+22 |
| 5 | 3.120755e+22 |
| 10 | 6.241509e+22 |
| 15 | 9.362264e+22 |
| 20 | 1.248302e+23 |
| 25 | 1.560377e+23 |
| 50 | 3.120755e+23 |
| 75 | 4.681132e+23 |
| 100 | 6.241509e+23 |
| 1,000 | 6.241509e+24 |
| eV | kJ |
|---|---|
| 1 | 1.602177e-22 |
| 2 | 3.204353e-22 |
| 3 | 4.80653e-22 |
| 5 | 8.010883e-22 |
| 10 | 1.602177e-21 |
| 15 | 2.403265e-21 |
| 20 | 3.204353e-21 |
| 25 | 4.005442e-21 |
| 50 | 8.010883e-21 |
| 75 | 1.201632e-20 |
| 100 | 1.602177e-20 |
| 1,000 | 1.602177e-19 |
Related conversions
Frequently asked questions
How many electronvolts are in 1 kilojoule?
1 kilojoule equals 6.241509e+21 electronvolts.
What is the formula to convert kilojoules to electronvolts?
Use eV = kJ × 6.24150907446 × 10^21. Multiply the number of kilojoules by 6.24150907446 × 10^21 to get electronvolts. Going the other way, divide by 6.24150907446 × 10^21 (or multiply by 1.602176634 × 10^-22).
What is 100 kilojoules in electronvolts?
100 kilojoules is 6.241509e+23 electronvolts.