electronvolts to kilocalories
Convert electronvolt to kilocalorie (food cal) — instant, free, with the formula shown.
How to convert electronvolt to kilocalorie (food cal)
To convert electronvolt to kilocalorie (food cal), multiply by 3.8293e-23:
For example, 10 eV × 3.8293e-23 = 3.8293e-22 kcal.
eV to kcal conversion table
| electronvolts (eV) | kilocalories (kcal) |
|---|---|
| 1 eV | 3.8293e-23 kcal |
| 2 eV | 7.6586e-23 kcal |
| 5 eV | 1.9146e-22 kcal |
| 10 eV | 3.8293e-22 kcal |
| 25 eV | 9.5732e-22 kcal |
| 50 eV | 1.9146e-21 kcal |
| 100 eV | 3.8293e-21 kcal |
| 250 eV | 9.5732e-21 kcal |
| 500 eV | 1.9146e-20 kcal |
| 1000 eV | 3.8293e-20 kcal |
Other electronvolt conversions
Convert to kilocalorie (food cal) from another unit
eV to kcal — frequently asked
How many kilocalories are in 1 electronvolt?
1 electronvolt = 3.8293e-23 kilocalories (eV × 3.8293e-23 = kcal).
What is the formula to convert electronvolt to kilocalorie (food cal)?
Multiply your electronvolt value by 3.8293e-23 to get kilocalorie (food cal).
How do I convert 10 electronvolts to kilocalories?
10 eV = 3.8293e-22 kcal. For 100 eV the answer is 3.8293e-21 kcal. Use the calculator on this page for any other value.
When to convert electronvolt to kilocalorie (food cal)
Energy conversion — common questions
Is a food calorie the same as a calorie?
No — a food 'Calorie' (capital C) actually means 1 kilocalorie = 1,000 small calories = 4,184 J. Nutrition labels typically write 'cal' meaning kcal.
How many joules in 1 kWh?
1 kWh = 3,600,000 J (3.6 MJ). Because 1 kW × 1 hour = 1,000 W × 3,600 s = 3,600,000 J.
What is a BTU?
British Thermal Unit — the energy required to raise 1 pound of water by 1 °F. 1 BTU ≈ 1,055 J.