Convert kilojoule (kJ) to electronvolt (eV).
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Electronvolt to Kilojoule Converter (eV to kJ)
Convert electronvolt (eV) to kilojoule (kJ).Unit Converter · Energy
Quick answer
1 electronvolt (eV) is approximately equal to 1.602177 × 10⁻²² kilojoules (kJ). 1 kilojoule (kJ) is approximately equal to 6.241509 × 10²¹ electronvolts (eV).
To convert eV to kJ, multiply the value in electronvolts by 1.602176634 × 10⁻²². For example, 10 eV = 1.60217663 × 10⁻²¹ kJ, and 100 eV = 1.60217663 × 10⁻²⁰ kJ.
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Quick reference — electronvolt to kilojoule
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How to convert electronvolts to kilojoules
How many kilojoules are in an electronvolt? 1 electronvolt is about 1.602177 × 10⁻²² kilojoules. This free eV to kJ converter and electronvolt to kilojoule calculator gives the answer instantly for any value.
To convert electronvolt (eV) to kilojoule (kJ), multiply the value in electronvolts by 1.602176634 × 10⁻²².
kJ = eV × 1.602176634 × 10⁻²²
- 1
Take the value in electronvolts
For example, 25 eV.
- 2
Multiply by 1.602176634 × 10⁻²²
25 × 1.602176634 × 10⁻²².
- 3
Read the answer in kilojoules
25 eV = 4.00544159 × 10⁻²¹ kJ.
Electronvolt to Kilojoule conversion table
Common values from 1 to 1,000 electronvolts converted to kilojoules.
| Electronvolt (eV) | Kilojoule (kJ) |
|---|---|
| 1 eV | 1.60217663 × 10⁻²² kJ |
| 2 eV | 3.20435327 × 10⁻²² kJ |
| 3 eV | 4.8065299 × 10⁻²² kJ |
| 4 eV | 6.40870654 × 10⁻²² kJ |
| 5 eV | 8.01088317 × 10⁻²² kJ |
| 6 eV | 9.6130598 × 10⁻²² kJ |
| 7 eV | 1.12152364 × 10⁻²¹ kJ |
| 8 eV | 1.28174131 × 10⁻²¹ kJ |
| 9 eV | 1.44195897 × 10⁻²¹ kJ |
| 10 eV | 1.60217663 × 10⁻²¹ kJ |
| 15 eV | 2.40326495 × 10⁻²¹ kJ |
| 20 eV | 3.20435327 × 10⁻²¹ kJ |
| 25 eV | 4.00544159 × 10⁻²¹ kJ |
| Electronvolt (eV) | Kilojoule (kJ) |
|---|---|
| 30 eV | 4.8065299 × 10⁻²¹ kJ |
| 40 eV | 6.40870654 × 10⁻²¹ kJ |
| 50 eV | 8.01088317 × 10⁻²¹ kJ |
| 60 eV | 9.6130598 × 10⁻²¹ kJ |
| 70 eV | 1.12152364 × 10⁻²⁰ kJ |
| 75 eV | 1.20163248 × 10⁻²⁰ kJ |
| 80 eV | 1.28174131 × 10⁻²⁰ kJ |
| 90 eV | 1.44195897 × 10⁻²⁰ kJ |
| 100 eV | 1.60217663 × 10⁻²⁰ kJ |
| 250 eV | 4.00544158 × 10⁻²⁰ kJ |
| 500 eV | 8.01088317 × 10⁻²⁰ kJ |
| 1,000 eV | 1.60217663 × 10⁻¹⁹ kJ |
About electronvolts and kilojoules
Electronvolt (eV)
An electronvolt (eV) is about 1.602 × 10⁻¹⁹ joules, the energy an electron gains across one volt. It is used in atomic and particle physics.
Kilojoule (kJ)
A kilojoule (kJ) is 1,000 joules. Food energy on nutrition labels is often shown in kJ as well as kcal.
eV to kJ: common questions
- How many kilojoules are in 1 electronvolt?
- 1 electronvolt (eV) is approximately equal to 1.602177 × 10⁻²² kilojoules (kJ). In short: 1 eV ≈ 1.602177 × 10⁻²² kJ.
- How do I convert electronvolts to kilojoules?
- To convert eV to kJ, multiply the value in electronvolts by 1.602176634 × 10⁻²². For example, 5 eV = 8.01088317 × 10⁻²² kJ.
- What is 10 eV in kJ, and what is 100 eV?
- 10 eV = 1.60217663 × 10⁻²¹ kJ, and 100 eV = 1.60217663 × 10⁻²⁰ kJ. The table above lists more values from 1 to 1,000.
- Is this eV to kJ converter accurate?
- Yes. It uses the exact conversion factor and shows results to as many as 8 decimal places, so you can rely on it for study, work and everyday measuring.
Kilojoule to Electronvolt converter →All Energy converters →
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