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Electronvolt to Kilojoule Converter

Convert Electronvolts to Kilojoules

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How to Convert Electronvolts to Kilojoules

To convert electronvolts (eV) to kilojoules (kJ), multiply the number of electronvolts by 1.60218 x 10-22. This is because 1 eV is equal to 1.60218 x 10-19 joules, and 1 kilojoule is 1,000 joules.

Formula

Kilojoules = Electronvolts × (1.60218 × 10-22)

or

kJ = eV × 1.60218e-22

Step-by-step process

  1. Take the measurement in electronvolts
  2. Multiply that number by 1.60218e-22
  3. The result is the equivalent energy in kilojoules

Examples

  • 1e21 eV = 1e21 × 1.60218e-22 = 0.1602 kJ
  • 1e22 eV = 1e22 × 1.60218e-22 = 1.6022 kJ
  • 1e23 eV = 1e23 × 1.60218e-22 = 16.022 kJ

Common Electronvolts to Kilojoules Conversions

Here is a table of common conversions for quick reference:

Electronvolts (eV) Kilojoules (kJ) Electronvolts (eV) Kilojoules (kJ)
1e18 0.00016 1e22 1.6022
1e19 0.0016 1e23 16.022
1e20 0.016 1e24 160.22
1e21 0.1602 1e25 1,602.2

Other conversions from electronvolts

Electronvolts can be converted to various other units of energy. Here are some common conversions:

Frequently Asked Questions

How many electronvolts are in a kilojoule?

There are approximately 6.242 x 1021 electronvolts in one kilojoule.