Electronvolts to Kilocalories Converter
Convert electronvolts (eV) to kilocalories (kcal)
Result
1 eV = 3.8292941 × 10⁻²³ kcal
1 eV in other units
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How to convert electronvolts to kilocalories
There are 2.611447 × 10²² electronvolts in one kilocalorie, so divide the number of electronvolts by 2.611447 × 10²².
kcal = eV ÷ 2.611447 × 10²²
1 eV = 3.829294 × 10⁻²³ kcal · 1 kcal = 2.611447 × 10²² eV
Worked example
To convert 5 electronvolts to kilocalories: 5 eV ÷ 2.611447 × 10²² = 1.914647 × 10⁻²² kcal.
About electronvolts (eV)
An electronvolt is the energy an electron gains across one volt, used in atomic and particle physics.
About kilocalories (kcal)
A kilocalorie is 1,000 calories. The calories on food labels and diet plans are kilocalories.
More conversions
Electronvolts to other units
Frequently asked questions
How many kilocalories are in one electronvolt?
One electronvolt equals 3.829294 × 10⁻²³ kilocalories.
How many electronvolts are in one kilocalorie?
One kilocalorie equals 2.611447 × 10²² electronvolts.
How do I convert electronvolts to kilocalories?
Use the formula kcal = eV ÷ 2.611447 × 10²². For example, 5 eV ÷ 2.611447 × 10²² = 1.914647 × 10⁻²² kcal.