Convert Kiloelectronvolt to Kilocalorie

Type the number of kiloelectronvolts that you wish to convert to kilocalories.

1 keV (kiloelectronvolts) = 3.8292940583e-20 kcal (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

kilocalories = kiloelectronvolts ÷ 2.6114473968e19

Step-by-Step Example

Convert 5 keV to kilocalories:

1
Convert 5 keV to kilocalories

We need to convert kiloelectronvolts to kilocalories

2
Apply the formula

Since 1 kcal = 2.6114473968e19 keV, divide by 2.6114473968e19

5 ÷ 2.6114473968e19 = 1.9146470292e-19

Answer

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.