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Electronvolts to Kilojoules Converter

Quick answer: 1 eV = 1.60218e-22 kJ. To convert electronvolts to kilojoules, multiply by 1.60218e-22.

eV
kJ

Kilojoules = Electronvolts × 1.60218e-22

Swap: Kilojoules to Electronvolts

Electronvolts to Kilojoules conversion table

ElectronvoltsKilojoules
1 eV1.60218e-22 kJ
2 eV3.20435e-22 kJ
5 eV8.01088e-22 kJ
10 eV1.60218e-21 kJ
25 eV4.00544e-21 kJ
50 eV8.01088e-21 kJ
100 eV1.60218e-20 kJ

How to convert electronvolts to kilojoules

Kilojoules = Electronvolts × 1.60218e-22. For example, 2 eV = 3.20435e-22 kJ. Type a value in either box above: the other one updates instantly, both ways.

What is an electronvolt?

An electronvolt (eV) is the energy an electron gains across one volt, about 1.602 × 10⁻¹⁹ joules.

What is a kilojoule?

A kilojoule (kJ) is 1,000 joules; food labels outside the US often list energy in kJ.

How do I convert electronvolts to kilojoules?

Use the formula Kilojoules = Electronvolts × 1.60218e-22. Type a value in the electronvolts box and the result appears instantly.

How many kilojoules are in 1 electronvolt?

1 eV = 1.60218e-22 kJ.

Is this converter free and private?

Yes. It is free, needs no sign-up, and the calculation runs in your browser: nothing is sent to a server.

Is a food Calorie the same as a calorie?

No. The Calorie on food labels is a kilocalorie (kcal), 1000 small calories or 4.184 kJ. This page uses the thermochemical calorie, 4.184 J.