electronvolts to kilojoules
Convert electronvolt to kilojoule — instant, free, with the formula shown.
How to convert electronvolt to kilojoule
To convert electronvolt to kilojoule, multiply by 1.6022e-22:
For example, 10 eV × 1.6022e-22 = 1.6022e-21 kJ.
eV to kJ conversion table
| electronvolts (eV) | kilojoules (kJ) |
|---|---|
| 1 eV | 1.6022e-22 kJ |
| 2 eV | 3.2044e-22 kJ |
| 5 eV | 8.0109e-22 kJ |
| 10 eV | 1.6022e-21 kJ |
| 25 eV | 4.0054e-21 kJ |
| 50 eV | 8.0109e-21 kJ |
| 100 eV | 1.6022e-20 kJ |
| 250 eV | 4.0054e-20 kJ |
| 500 eV | 8.0109e-20 kJ |
| 1000 eV | 1.6022e-19 kJ |
Other electronvolt conversions
Convert to kilojoule from another unit
eV to kJ — frequently asked
How many kilojoules are in 1 electronvolt?
1 electronvolt = 1.6022e-22 kilojoules (eV × 1.6022e-22 = kJ).
What is the formula to convert electronvolt to kilojoule?
Multiply your electronvolt value by 1.6022e-22 to get kilojoule.
How do I convert 10 electronvolts to kilojoules?
10 eV = 1.6022e-21 kJ. For 100 eV the answer is 1.6022e-20 kJ. Use the calculator on this page for any other value.
When to convert electronvolt to kilojoule
Energy conversion — common questions
Is a food calorie the same as a calorie?
No — a food 'Calorie' (capital C) actually means 1 kilocalorie = 1,000 small calories = 4,184 J. Nutrition labels typically write 'cal' meaning kcal.
How many joules in 1 kWh?
1 kWh = 3,600,000 J (3.6 MJ). Because 1 kW × 1 hour = 1,000 W × 3,600 s = 3,600,000 J.
What is a BTU?
British Thermal Unit — the energy required to raise 1 pound of water by 1 °F. 1 BTU ≈ 1,055 J.