Electronvolts to Kilojoules Converter

Convert electronvolts (eV) to kilojoules (kJ) instantly. Energy conversions link food labels in kJ and kcal, SP Group bills in kWh and air-conditioner capacity in BTU.

Result

Kilojoules
1.602177e-22 kJ

How to use the electronvolts to kilojoules converter

  1. Enter the electronvolts (eV).
  2. The results update as you type, or press Calculate.
  3. Read the kilojoules first, then the supporting figures below it.

Formula

Kilojoules = electronvolts × 1.602177e-22

Worked example

For example, with these inputs:

the calculator returns:

Electronvolts to Kilojoules table

ElectronvoltsKilojoules
1 eV1.602177e-22 kJ
2 eV3.204353e-22 kJ
5 eV8.010883e-22 kJ
10 eV1.602177e-21 kJ
20 eV3.204353e-21 kJ
25 eV4.005442e-21 kJ
50 eV8.010883e-21 kJ
100 eV1.602177e-20 kJ
250 eV4.005442e-20 kJ
500 eV8.010883e-20 kJ
1,000 eV1.602177e-19 kJ

About this conversion

Energy conversions link food labels in kJ and kcal, SP Group bills in kWh and air-conditioner capacity in BTU.

A conversion table is handy for common values, but a calculator is faster and avoids interpolation errors for anything in between.

Writing the units next to every number while you work is the simplest way to avoid mistakes. If the units do not cancel to leave the one you want, the calculation is set up wrongly.

Frequently asked questions

How many kilojoules are in one electronvolt?

1 eV = 1.602177e-22 kJ.

How do I convert eV to kJ?

Kilojoules = electronvolts × 1.602177e-22.

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