Kilocalories to electronvolts converter
Electronvolts (eV)
1 kilocalorie = 2.611447e+22 electronvolts
How to convert kilocalories to electronvolts
eV = kcal × 2.61144739675 × 10^22
Multiply the number of kilocalories by 2.61144739675 × 10^22 to get electronvolts. Going the other way, divide by 2.61144739675 × 10^22 (or multiply by 3.82929405832 × 10^-23).
One kilocalorie is exactly defined as 2.61144739675 × 10^22 electronvolts (to 12 significant figures), and one electronvolt is 3.82929405832 × 10^-23 kilocalories.
Worked examples
- Convert 5 kilocalories: 5 × 2.61144739675 × 10^22 = 1.305724e+23 1.305724e+23 electronvolts.
- Convert 12.5 kilocalories: 12.5 × 2.61144739675 × 10^22 = 3.264309e+23 3.264309e+23 electronvolts.
- Convert 250 kilocalories: 250 × 2.61144739675 × 10^22 = 6.528618e+24 6.528618e+24 electronvolts.
Quick-reference table
| kcal | eV |
|---|---|
| 1 | 2.611447e+22 |
| 2 | 5.222895e+22 |
| 3 | 7.834342e+22 |
| 5 | 1.305724e+23 |
| 10 | 2.611447e+23 |
| 15 | 3.917171e+23 |
| 20 | 5.222895e+23 |
| 25 | 6.528618e+23 |
| 50 | 1.305724e+24 |
| 75 | 1.958586e+24 |
| 100 | 2.611447e+24 |
| 1,000 | 2.611447e+25 |
| eV | kcal |
|---|---|
| 1 | 3.829294e-23 |
| 2 | 7.658588e-23 |
| 3 | 1.148788e-22 |
| 5 | 1.914647e-22 |
| 10 | 3.829294e-22 |
| 15 | 5.743941e-22 |
| 20 | 7.658588e-22 |
| 25 | 9.573235e-22 |
| 50 | 1.914647e-21 |
| 75 | 2.871971e-21 |
| 100 | 3.829294e-21 |
| 1,000 | 3.829294e-20 |
Related conversions
Frequently asked questions
How many electronvolts are in 1 kilocalorie?
1 kilocalorie equals 2.611447e+22 electronvolts.
What is the formula to convert kilocalories to electronvolts?
Use eV = kcal × 2.61144739675 × 10^22. Multiply the number of kilocalories by 2.61144739675 × 10^22 to get electronvolts. Going the other way, divide by 2.61144739675 × 10^22 (or multiply by 3.82929405832 × 10^-23).
What is 100 kilocalories in electronvolts?
100 kilocalories is 2.611447e+24 electronvolts.