Kilocalories (kcal) to Electronvolts (eV) Conversion
Kilocalories
The kilocalorie (kcal), commonly called a "Calorie" (capital C) in nutritional contexts, is a unit of energy equal to exactly 4,184 joules. It represents the energy needed to raise 1 kg of water by 1 °C. In nutrition, all food energy values are expressed in kcal per gram: carbohydrates and protein provide 4 kcal/g; fat provides 9 kcal/g; alcohol provides 7 kcal/g. An average adult requires approximately 2,000–2,500 kcal per day to maintain body weight.
Electronvolts
The electronvolt (eV) is a unit of energy equal to exactly 1.602176634 × 10⁻¹⁹ joules, defined as the kinetic energy gained by a single electron accelerated through a potential difference of one volt. It is the standard unit in particle physics, atomic physics, and solid-state physics. Visible light photons carry 1.8–3.1 eV of energy; X-ray photons carry 100 eV to 100 keV; the proton beams at CERN's LHC reach 6.5 teraelectronvolts (TeV).
| Kilocalories (kcal) | Electronvolts (eV) |
|---|---|
| 0.1 kcal | 2,611,447,396,754,383,000,000.00 eV |
| 1 kcal | 26,114,473,967,543,833,000,000.00 eV |
| 2 kcal | 52,228,947,935,087,666,000,000.00 eV |
| 3 kcal | 78,343,421,902,631,500,000,000.00 eV |
| 5 kcal | 130,572,369,837,719,160,000,000.00 eV |
| 10 kcal | 261,144,739,675,438,330,000,000.00 eV |
| 20 kcal | 522,289,479,350,876,660,000,000.00 eV |
| 30 kcal | 783,434,219,026,315,000,000,000.00 eV |
| 50 kcal | 1,305,723,698,377,191,500,000,000.00 eV |
| 100 kcal | 2,611,447,396,754,383,000,000,000.00 eV |
| 1000 kcal | 26,114,473,967,543,832,000,000,000.00 eV |
Frequently Asked Questions (FAQ)
How many electronvolts are in 1 kilocalories?
1 kilocalories (kcal) is exactly 26,114,473,967,543,832,805,376 electronvolts (eV).
How do I convert kilocalories to electronvolts?
Multiply the value in kilocalories by 26,114,473,967,543,832,805,376 to get the result in electronvolts. Or use the converter above — type any number and see the result instantly.