Convert kilocalorie (kcal) to electronvolt (eV).
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Electronvolt to Kilocalorie Converter (eV to kcal)
Convert electronvolt (eV) to kilocalorie (kcal).Unit Converter · Energy
Quick answer
1 electronvolt (eV) is approximately equal to 3.829294 × 10⁻²³ kilocalories (kcal). 1 kilocalorie (kcal) is approximately equal to 2.611447 × 10²² electronvolts (eV).
To convert eV to kcal, multiply the value in electronvolts by 3.8292940583 × 10⁻²³. For example, 10 eV = 3.82929406 × 10⁻²² kcal, and 100 eV = 3.82929406 × 10⁻²¹ kcal.
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Quick reference — electronvolt to kilocalorie
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How to convert electronvolts to kilocalories
How many kilocalories are in an electronvolt? 1 electronvolt is about 3.829294 × 10⁻²³ kilocalories. This free eV to kcal converter and electronvolt to kilocalorie calculator gives the answer instantly for any value.
To convert electronvolt (eV) to kilocalorie (kcal), multiply the value in electronvolts by 3.8292940583 × 10⁻²³.
kcal = eV × 3.8292940583 × 10⁻²³
- 1
Take the value in electronvolts
For example, 25 eV.
- 2
Multiply by 3.8292940583 × 10⁻²³
25 × 3.8292940583 × 10⁻²³.
- 3
Read the answer in kilocalories
25 eV = 9.57323515 × 10⁻²² kcal.
Electronvolt to Kilocalorie conversion table
Common values from 1 to 1,000 electronvolts converted to kilocalories.
| Electronvolt (eV) | Kilocalorie (kcal) |
|---|---|
| 1 eV | 3.82929406 × 10⁻²³ kcal |
| 2 eV | 7.65858812 × 10⁻²³ kcal |
| 3 eV | 1.14878822 × 10⁻²² kcal |
| 4 eV | 1.53171762 × 10⁻²² kcal |
| 5 eV | 1.91464703 × 10⁻²² kcal |
| 6 eV | 2.29757643 × 10⁻²² kcal |
| 7 eV | 2.68050584 × 10⁻²² kcal |
| 8 eV | 3.06343525 × 10⁻²² kcal |
| 9 eV | 3.44636465 × 10⁻²² kcal |
| 10 eV | 3.82929406 × 10⁻²² kcal |
| 15 eV | 5.74394109 × 10⁻²² kcal |
| 20 eV | 7.65858812 × 10⁻²² kcal |
| 25 eV | 9.57323515 × 10⁻²² kcal |
| Electronvolt (eV) | Kilocalorie (kcal) |
|---|---|
| 30 eV | 1.14878822 × 10⁻²¹ kcal |
| 40 eV | 1.53171762 × 10⁻²¹ kcal |
| 50 eV | 1.91464703 × 10⁻²¹ kcal |
| 60 eV | 2.29757643 × 10⁻²¹ kcal |
| 70 eV | 2.68050584 × 10⁻²¹ kcal |
| 75 eV | 2.87197054 × 10⁻²¹ kcal |
| 80 eV | 3.06343525 × 10⁻²¹ kcal |
| 90 eV | 3.44636465 × 10⁻²¹ kcal |
| 100 eV | 3.82929406 × 10⁻²¹ kcal |
| 250 eV | 9.57323515 × 10⁻²¹ kcal |
| 500 eV | 1.91464703 × 10⁻²⁰ kcal |
| 1,000 eV | 3.82929406 × 10⁻²⁰ kcal |
About electronvolts and kilocalories
Electronvolt (eV)
An electronvolt (eV) is about 1.602 × 10⁻¹⁹ joules, the energy an electron gains across one volt. It is used in atomic and particle physics.
Kilocalorie (kcal)
A kilocalorie (kcal) is 1,000 calories, or 4,184 joules. It is the "Calorie" used on food labels and in diet and fitness tracking.
eV to kcal: common questions
- How many kilocalories are in 1 electronvolt?
- 1 electronvolt (eV) is approximately equal to 3.829294 × 10⁻²³ kilocalories (kcal). In short: 1 eV ≈ 3.829294 × 10⁻²³ kcal.
- How do I convert electronvolts to kilocalories?
- To convert eV to kcal, multiply the value in electronvolts by 3.8292940583 × 10⁻²³. For example, 5 eV = 1.91464703 × 10⁻²² kcal.
- What is 10 eV in kcal, and what is 100 eV?
- 10 eV = 3.82929406 × 10⁻²² kcal, and 100 eV = 3.82929406 × 10⁻²¹ kcal. The table above lists more values from 1 to 1,000.
- Is this eV to kcal converter accurate?
- Yes. It uses the exact conversion factor and shows results to as many as 8 decimal places, so you can rely on it for study, work and everyday measuring.
Kilocalorie to Electronvolt converter →All Energy converters →
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