Kilojoules to Electronvolts Converter

1 kilojoule (kJ) equals 6.2415091 × 1021 electronvolts (eV).

Quick answer

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

1 kilojoule = 6.2415091 × 1021 electronvolts

How to convert kilojoules to electronvolts

eV = kJ × 6.2415091 × 1021

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

Example: 18 kJ to eV

  1. Start with the value in kilojoules: 18 kJ.
  2. Multiply by 6.2415091 × 1021: 18 × 6.2415091 × 1021 = 1.1234716 × 1023.
  3. Result: 18 kilojoules = 1.1234716 × 1023 electronvolts.

Going the other way, 1 electronvolt = 1.6021766 × 10-22 kilojoules, so to convert electronvolts back to kilojoules you divide by the same number. See electronvolts to kilojoules.

Kilojoules to electronvolts conversion table

Kilojoules (kJ)Electronvolts (eV)
0.25 kJ 1.5603773 × 1021 eV
0.5 kJ 3.1207545 × 1021 eV
0.75 kJ 4.6811318 × 1021 eV
1 kJ 6.2415091 × 1021 eV
1.5 kJ 9.3622636 × 1021 eV
2 kJ 1.2483018 × 1022 eV
2.5 kJ 1.5603773 × 1022 eV
3 kJ 1.8724527 × 1022 eV
4 kJ 2.4966036 × 1022 eV
5 kJ 3.1207545 × 1022 eV
6 kJ 3.7449054 × 1022 eV
7 kJ 4.3690564 × 1022 eV
8 kJ 4.9932073 × 1022 eV
9 kJ 5.6173582 × 1022 eV
10 kJ 6.2415091 × 1022 eV
11 kJ 6.86566 × 1022 eV
12 kJ 7.4898109 × 1022 eV
13 kJ 8.1139618 × 1022 eV
14 kJ 8.7381127 × 1022 eV
15 kJ 9.3622636 × 1022 eV
16 kJ 9.9864145 × 1022 eV
17 kJ 1.0610565 × 1023 eV
18 kJ 1.1234716 × 1023 eV
19 kJ 1.1858867 × 1023 eV
20 kJ 1.2483018 × 1023 eV
21 kJ 1.3107169 × 1023 eV
22 kJ 1.373132 × 1023 eV
23 kJ 1.4355471 × 1023 eV
24 kJ 1.4979622 × 1023 eV
25 kJ 1.5603773 × 1023 eV
26 kJ 1.6227924 × 1023 eV
27 kJ 1.6852075 × 1023 eV
28 kJ 1.7476225 × 1023 eV
29 kJ 1.8100376 × 1023 eV
30 kJ 1.8724527 × 1023 eV
31 kJ 1.9348678 × 1023 eV
32 kJ 1.9972829 × 1023 eV
33 kJ 2.059698 × 1023 eV
34 kJ 2.1221131 × 1023 eV
35 kJ 2.1845282 × 1023 eV

More kJ to eV values

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 →

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 →

Convert kilojoules to other units

Convert other units to electronvolts

Frequently asked questions

How many electronvolts are in a kilojoule?

One kilojoule is 6.2415091e21 electronvolts.

How many kilojoules are in an electronvolt?

One electronvolt is 1.6021766e-22 kilojoules.

What is the formula to convert kilojoules to electronvolts?

eV = kJ × 6.2415091 × 10^21.