Kilojoules to Electronvolts Converter

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

Result

Electronvolts
6.241509e+21 eV

How to use the kilojoules to electronvolts converter

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

Formula

Electronvolts = kilojoules × 6.241509e+21

Worked example

For example, with these inputs:

the calculator returns:

Kilojoules to Electronvolts table

KilojoulesElectronvolts
1 kJ6.241509e+21 eV
2 kJ1.248302e+22 eV
5 kJ3.120755e+22 eV
10 kJ6.241509e+22 eV
20 kJ1.248302e+23 eV
25 kJ1.560377e+23 eV
50 kJ3.120755e+23 eV
100 kJ6.241509e+23 eV
250 kJ1.560377e+24 eV
500 kJ3.120755e+24 eV
1,000 kJ6.241509e+24 eV

About this conversion

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

Unit conversion is simply multiplication by a fixed ratio. The ratio between two units of the same quantity never changes, so once you know it you can convert any value in either direction.

Singapore adopted the metric system in the 1970s, replacing imperial units and traditional Chinese measures in most official uses. Metric units are now standard in schools, trade and government, but older units survive in property, markets and imported goods.

Frequently asked questions

How many electronvolts are in one kilojoule?

1 kJ = 6.241509e+21 eV.

How do I convert kJ to eV?

Electronvolts = kilojoules × 6.241509e+21.

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