Convert Kilocalorie to Electronvolt
Use this free converter to change kilocalories (kcal) into electronvolts (eV). Kilocalorie and electronvolt both measure energy. As a quick reference, 1 kcal equals 2.6114e+22 eV, and 1 eV equals 3.8293e-23 kcal.
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Electronvolt (eV)
2.6114e+22
1 kcal = 2.6114e+22 eV
Energy conversion table
| Kilocalorie | Electronvolt |
|---|---|
| 0.01 | 2.6114e+20 |
| 0.1 | 2.6114e+21 |
| 0.5 | 1.3057e+22 |
| 1 | 2.6114e+22 |
| 2 | 5.2229e+22 |
| 3 | 7.8343e+22 |
| 5 | 1.3057e+23 |
| 10 | 2.6114e+23 |
| 20 | 5.2229e+23 |
| 25 | 6.5286e+23 |
| 50 | 1.3057e+24 |
| 100 | 2.6114e+24 |
| 1,000 | 2.6114e+25 |
How to convert Kilocalorie to Electronvolt
Multiply the kilocalorie value by 2.6114e+22 to get electronvolts.
- Enter the number of kilocalories you want to convert.
- The converter instantly shows the equivalent value in electronvolts.
- Worked example: 15 kcal × 2.6114e+22 = 3.9172e+23 eV.
- Use the swap button to reverse the conversion (electronvolt to kilocalorie).
About these units
Kilocalorie (kcal)
- Definition
- A kilocalorie (kcal) is 1,000 small calories — the "Calorie" used on food labels.
- History
- It was adopted by nutritionists as a practical measure of food energy.
- Current use
- Kilocalories (food Calories) measure the energy content of food and diets.
Electronvolt (eV)
- Definition
- An electronvolt (eV) is the energy gained by an electron moving through a one-volt potential, a tiny amount of energy.
- History
- It became standard in atomic and particle physics in the 20th century.
- Current use
- Electronvolts measure energies of particles, photons, and chemical bonds.
Frequently asked questions
How many electronvolts are in a kilocalorie?
There are 2.6114e+22 eV in 1 kcal. To convert, multiply the number of kilocalories by 2.6114e+22.
How do I convert kilocalories to electronvolts?
Multiply the kilocalorie value by 2.6114e+22 to get electronvolts. For example, 10 kcal = 2.6114e+23 eV.
Is this kilocalorie-to-electronvolt converter free?
Yes. This converter is completely free, runs entirely in your browser, and requires no sign-up. Your inputs never leave your device.
Convert Kilocalorie to other energy units
| Unit | 1 Kilocalorie equals |
|---|---|
| Joule (J) | 4184 J |
| Kilojoule (kJ) | 4.184 kJ |
| Calorie (cal) | 1000 cal |
| Watt Hour (Wh) | 1.1622222 Wh |
| Kilowatt Hour (kWh) | 0.0011622222 kWh |
| Electronvolt (eV) | 2.6114e+22 eV |
| British Thermal Unit (BTU) | 3.9656668 BTU |
| Foot-Pound (ft·lb) | 3085.96 ft·lb |