Convert Kiloelectronvolt to Kilocalorie
Type the number of kiloelectronvolts that you wish to convert to kilocalories.
How to Convert Kiloelectronvolts to Kilocalories
The kiloelectronvolt and kilocalorie are both units of energy. By definition, 1 kilocalorie equals exactly 2.6114473968e19 kiloelectronvolts. This means to convert kiloelectronvolts to kilocalories, you divide by 2.6114473968e19.
Formula
Step-by-Step Example
Convert 5 keV to kilocalories:
We need to convert kiloelectronvolts to kilocalories
Since 1 kcal = 2.6114473968e19 keV, divide by 2.6114473968e19
5 ÷ 2.6114473968e19 = 1.9146470292e-19
5 keV = 1.9146470292e-19 kcal
Kiloelectronvolt to Kilocalorie Conversion Table
Quick reference table for common kiloelectronvolt to kilocalorie conversions. Click any value for detailed calculation.
| Kiloelectronvolts (keV) | Kilocalories (kcal) |
|---|---|
| 0.1 keV | 3.8292940583e-21 kcal |
| 0.5 keV | 1.9146470292e-20 kcal |
| 1 keV | 3.8292940583e-20 kcal |
| 2 keV | 7.6585881166e-20 kcal |
| 5 keV | 1.9146470292e-19 kcal |
| 10 keV | 3.8292940583e-19 kcal |
| 25 keV | 9.5732351458e-19 kcal |
| 50 keV | 1.9146470292e-18 kcal |
| 100 keV | 3.8292940583e-18 kcal |
About These Units
Kiloelectronvolt (keV)
A kiloelectronvolt (keV) equals 1,000 electronvolts. KeV measures X-ray energy (medical X-rays: 20-150 keV), electron microscope beam energy, and radiation dosimetry. Gamma rays from nuclear decay often have energies in keV to MeV range.
Kilocalorie (kcal)
A kilocalorie (kcal), often written as "Calorie" (capital C) on food labels, equals 1,000 small calories or 4,184 joules. Kilocalories measure food energy. Average adult needs 2,000-2,500 kcal daily. Walking one mile burns about 80-100 kcal.
Frequently Asked Questions
How do I convert kiloelectronvolts to kilocalories?
To convert kiloelectronvolts to kilocalories, divide the value by 2.6114473968e19. For example, 10 keV = 3.8292940583e-19 kcal.
How many kilocalories are in 1 kiloelectronvolt?
1 kiloelectronvolt equals 3.8292940583e-20 kilocalories.
What is the formula for kiloelectronvolts to kilocalories?
The formula is: kcal = keV ÷ 2.6114473968e19.