Convert Calorie to Electronvolt
Type the number of calories that you wish to convert to electronvolts.
How to Convert Calories to Electronvolts
The calorie and electronvolt are both units of energy. By definition, 1 calorie equals exactly 2.6114473968e19 electronvolts. This means to convert calories to electronvolts, you multiply by 2.6114473968e19.
Formula
Step-by-Step Example
Convert 5 cal to electronvolts:
We need to convert calories to electronvolts
Since 1 cal = 2.6114473968e19 eV, multiply by 2.6114473968e19
5 × 2.6114473968e19 = 1.3057236984e20
5 cal = 1.3057236984e20 eV
Calorie to Electronvolt Conversion Table
Quick reference table for common calorie to electronvolt conversions. Click any value for detailed calculation.
| Calories (cal) | Electronvolts (eV) |
|---|---|
| 0.1 cal | 2.6114473968e18 eV |
| 0.5 cal | 1.3057236984e19 eV |
| 1 cal | 2.6114473968e19 eV |
| 2 cal | 5.2228947935e19 eV |
| 5 cal | 1.3057236984e20 eV |
| 10 cal | 2.6114473968e20 eV |
| 25 cal | 6.5286184919e20 eV |
| 50 cal | 1.3057236984e21 eV |
| 100 cal | 2.6114473968e21 eV |
About These Units
Calorie (cal)
A small calorie (cal) is the energy needed to raise 1 gram of water by 1°C, equal to 4.184 joules. Small calories are used in chemistry and physics. Note: food "Calories" (with capital C) are actually kilocalories. One calorie equals 0.003968 BTU.
Electronvolt (eV)
An electronvolt (eV) is the energy gained by an electron accelerated through 1 volt potential difference, equal to 1.602×10⁻¹⁹ joules. Electronvolts measure atomic and molecular energies, photon energy (visible light: 1.6-3.3 eV), and particle physics. X-rays range from 100 eV to 100 keV.
Frequently Asked Questions
How do I convert calories to electronvolts?
To convert calories to electronvolts, multiply the value by 2.6114473968e19. For example, 10 cal = 2.6114473968e20 eV.
How many electronvolts are in 1 calorie?
1 calorie equals 2.6114473968e19 electronvolts.
What is the formula for calories to electronvolts?
The formula is: eV = cal × 2.6114473968e19.