Electronvolts to Kilojoules Converter

1 electronvolt (eV) equals 1.6021766 × 10-22 kilojoules (kJ).

Quick answer

  • 1 electronvolt = 1.6021766 × 10-22 kilojoules
  • 1 kilojoule = 6.2415091 × 1021 electronvolts
  • Formula: kJ = eV ÷ 6.2415091 × 1021

1 electronvolt = 1.6021766 × 10-22 kilojoules

How to convert electronvolts to kilojoules

kJ = eV ÷ 6.2415091 × 1021

To convert electronvolts to kilojoules, divide the number of electronvolts by 6.2415091 × 1021.

Example: 18 eV to kJ

  1. Start with the value in electronvolts: 18 eV.
  2. Divide by 6.2415091 × 1021: 18 ÷ 6.2415091 × 1021 = 2.8839179 × 10-21.
  3. Result: 18 electronvolts = 2.8839179 × 10-21 kilojoules.

Going the other way, 1 kilojoule = 6.2415091 × 1021 electronvolts, so to convert kilojoules back to electronvolts you multiply by the same number. See kilojoules to electronvolts.

Electronvolts to kilojoules conversion table

Electronvolts (eV)Kilojoules (kJ)
0.25 eV 4.0054416 × 10-23 kJ
0.5 eV 8.0108832 × 10-23 kJ
0.75 eV 1.2016325 × 10-22 kJ
1 eV 1.6021766 × 10-22 kJ
1.5 eV 2.403265 × 10-22 kJ
2 eV 3.2043533 × 10-22 kJ
2.5 eV 4.0054416 × 10-22 kJ
3 eV 4.8065299 × 10-22 kJ
4 eV 6.4087065 × 10-22 kJ
5 eV 8.0108832 × 10-22 kJ
6 eV 9.6130598 × 10-22 kJ
7 eV 1.1215236 × 10-21 kJ
8 eV 1.2817413 × 10-21 kJ
9 eV 1.441959 × 10-21 kJ
10 eV 1.6021766 × 10-21 kJ
11 eV 1.7623943 × 10-21 kJ
12 eV 1.922612 × 10-21 kJ
13 eV 2.0828296 × 10-21 kJ
14 eV 2.2430473 × 10-21 kJ
15 eV 2.403265 × 10-21 kJ
16 eV 2.5634826 × 10-21 kJ
17 eV 2.7237003 × 10-21 kJ
18 eV 2.8839179 × 10-21 kJ
19 eV 3.0441356 × 10-21 kJ
20 eV 3.2043533 × 10-21 kJ
21 eV 3.3645709 × 10-21 kJ
22 eV 3.5247886 × 10-21 kJ
23 eV 3.6850063 × 10-21 kJ
24 eV 3.8452239 × 10-21 kJ
25 eV 4.0054416 × 10-21 kJ
26 eV 4.1656592 × 10-21 kJ
27 eV 4.3258769 × 10-21 kJ
28 eV 4.4860946 × 10-21 kJ
29 eV 4.6463122 × 10-21 kJ
30 eV 4.8065299 × 10-21 kJ
31 eV 4.9667476 × 10-21 kJ
32 eV 5.1269652 × 10-21 kJ
33 eV 5.2871829 × 10-21 kJ
34 eV 5.4474006 × 10-21 kJ
35 eV 5.6076182 × 10-21 kJ

More eV to kJ values

What is an electronvolt?

The electronvolt is the energy an electron gains when accelerated through one volt, exactly 1.602176634 × 10⁻¹⁹ joules.

More about electronvolts →

What is a kilojoule?

The kilojoule is 1,000 joules. It is the unit of food energy on labels in Australia, New Zealand and the EU (alongside kcal), and a common unit in chemistry.

More about kilojoules →

Convert electronvolts to other units

Convert other units to kilojoules

Frequently asked questions

How many kilojoules are in an electronvolt?

One electronvolt is 1.6021766e-22 kilojoules.

How many electronvolts are in a kilojoule?

One kilojoule is 6.2415091e21 electronvolts.

What is the formula to convert electronvolts to kilojoules?

kJ = eV ÷ 6.2415091 × 10^21.