Electronvolts to Kilocalories Converter

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

Result

Kilocalories
3.829294e-23 kcal

How to use the electronvolts to kilocalories converter

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

Formula

Kilocalories = electronvolts × 3.829294e-23

Worked example

For example, with these inputs:

the calculator returns:

Electronvolts to Kilocalories table

ElectronvoltsKilocalories
1 eV3.829294e-23 kcal
2 eV7.658588e-23 kcal
5 eV1.914647e-22 kcal
10 eV3.829294e-22 kcal
20 eV7.658588e-22 kcal
25 eV9.573235e-22 kcal
50 eV1.914647e-21 kcal
100 eV3.829294e-21 kcal
250 eV9.573235e-21 kcal
500 eV1.914647e-20 kcal
1,000 eV3.829294e-20 kcal

About this conversion

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

For everyday use, three or four significant figures are usually enough. Engineering, science and trade documents may need more, and rounding should happen only at the end of a calculation.

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.

Frequently asked questions

How many kilocalories are in one electronvolt?

1 eV = 3.829294e-23 kcal.

How do I convert eV to kcal?

Kilocalories = electronvolts × 3.829294e-23.

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