Kilojoules to Electronvolts Converter

Enter the energy in kilojoules below to get the value converted to electronvolts.


Result in Electronvolts:

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1 kJ = 6.2415E+21 eV
Hint: use a scientific notation calculator to convert E notation to decimal

Do you want to convert electronvolts to kilojoules?

How to Convert Kilojoules to Electronvolts

To convert a measurement in kilojoules to a measurement in electronvolts, multiply the energy by the following conversion ratio: 6.2415E+21 electronvolts/kilojoule.

Since one kilojoule is equal to 6.2415E+21 electronvolts, you can use this simple formula to convert:

electronvolts = kilojoules × 6.2415E+21

The energy in electronvolts is equal to the energy in kilojoules multiplied by 6.2415E+21.

For example, here's how to convert 5 kilojoules to electronvolts using the formula above.
electronvolts = (5 kJ × 6.2415E+21) = 3.1208E+22 eV

How Many Electronvolts Are in a Kilojoule?

There are 6.2415E+21 electronvolts in a kilojoule, which is why we use this value in the formula above.

1 kJ = 6.2415E+21 eV

Kilojoules and electronvolts are both units used to measure energy. Keep reading to learn more about each unit of measure.

What Is a Kilojoule?

One kilojoule is equal to 1,000 joules, which is the energy equal to the force on an object of one newton at a distance of one meter.

The kilojoule is a multiple of the joule, which is the SI derived unit for energy. In the metric system, "kilo" is the prefix for thousands, or 103. Kilojoules can be abbreviated as kJ; for example, 1 kilojoule can be written as 1 kJ.

Learn more about kilojoules.

What Is an Electronvolt?

An electronvolt is the amount of energy required to accelerate an electron through a difference in electric potential of one volt in vacuum. One electronvolt is equal to the charge of 1.602176634 × 10−19 C, and is equal to the energy of 1.602176634 × 10−19 Joules.[1]

Electronvolts can be abbreviated as eV; for example, 1 electronvolt can be written as 1 eV.

Energy in electronvolts can be expressed using the following formula: E = qV

The energy E in electronvolts is equal to the electric charge q in elementary charge times the potential difference V in volts.

Learn more about electronvolts.

Kilojoule to Electronvolt Conversion Table

Table showing various kilojoule measurements converted to electronvolts.
Kilojoules Electronvolts
0.000000000000000000001 kJ 6.2415 eV
0.000000000000000000002 kJ 12.48 eV
0.000000000000000000003 kJ 18.72 eV
0.000000000000000000004 kJ 24.97 eV
0.000000000000000000005 kJ 31.21 eV
0.000000000000000000006 kJ 37.45 eV
0.000000000000000000007 kJ 43.69 eV
0.000000000000000000008 kJ 49.93 eV
0.000000000000000000009 kJ 56.17 eV
0.0000000000000000000001 kJ 0.624151 eV
0.000000000000000000001 kJ 6.2415 eV
0.00000000000000000001 kJ 62.42 eV
0.0000000000000000001 kJ 624.15 eV
0.000000000000000001 kJ 6,242 eV
0.00000000000000001 kJ 62,415 eV
0.0000000000000001 kJ 624,151 eV
0.000000000000001 kJ 6,241,509 eV
0.00000000000001 kJ 62,415,093 eV
0.0000000000001 kJ 624,150,934 eV
0.000000000001 kJ 6,241,509,343 eV
0.00000000001 kJ 62,415,093,433 eV
0.0000000001 kJ 624,150,934,326 eV
0.000000001 kJ 6,241,509,343,260 eV
0.00000001 kJ 62,415,093,432,602 eV
0.0000001 kJ 624,150,000,000,000 eV
0.000001 kJ 6,241,500,000,000,000 eV
0.00001 kJ 62,415,000,000,000,000 eV
0.0001 kJ 624,150,000,000,000,000 eV
0.001 kJ 6,241,500,000,000,000,000 eV
0.01 kJ 62,415,000,000,000,000,000 eV
0.1 kJ 624,150,000,000,000,065,536 eV
1 kJ 6,241,499,999,999,999,606,784 eV


  1. Tatum, J., Electricity and Magnetism - 2.3: Electron-volts,

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