Electronvolt (eV)
The electronvolt is used in atomic, nuclear, and quantum physics for very small energies.
History: the electronvolt arose in particle physics as the energy of an electron crossing one volt of potential difference.
Quickly convert electronvolts to kilocalories without lookup tables or manual math.
This page is focused on converting electronvolts to kilocalories. Type a number into the first field and the result appears immediately in the second field.
Example: 1 eV = 0 kcal. Conversion formula: result = value × 1.602176634E-19 / 4184.
Use this converter for everyday calculations, study notes, engineering checks, and quick value verification without installing a separate app.
The electronvolt is used in atomic, nuclear, and quantum physics for very small energies.
History: the electronvolt arose in particle physics as the energy of an electron crossing one volt of potential difference.
The kilocalorie equals 1000 calories and is the familiar “Calorie” on food labels.
History: the kilocalorie appeared as a larger heat unit and became the familiar food Calorie.
Enter a value in the Electronvolt field. The converter applies the formula "result = value × 1.602176634E-19 / 4184" and immediately shows the result in kilocalories.
1 eV = 0 kcal.
Yes. Use the swap button or choose the reverse pair from the full conversion list.