Convert Calories (cal) to Kiloelectronvolts (keV)

Enter a value below to convert Calories (cal) to Kiloelectronvolts (keV).

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Conversion:

1 Calories (cal) = 26114473968000000 Kiloelectronvolts (keV)

How to Convert Calories (cal) to Kiloelectronvolts (keV)

1 cal = 26114473968000000 kev

1 kev = 3.8292940583e-17 cal

Example: convert 15 Calories (cal) to Kiloelectronvolts (keV):

25 cal = 652861849190000000 kev

Calories (cal) to Kiloelectronvolts (keV) Conversion Table

Calories (cal)Kiloelectronvolts (keV)
0.01 cal261144739680000 kev
0.1 cal2611447396800000 kev
1 cal26114473968000000 kev
2 cal52228947935000000 kev
3 cal78343421903000000 kev
5 cal130572369840000000 kev
10 cal261144739680000000 kev
20 cal522289479350000000 kev
50 cal1305723698400000000 kev
100 cal2611447396800000000 kev
1000 cal26114473968000000000 kev

Calories (cal)

Definition

A calorie (cal), also known as a small calorie or gram calorie, is defined as the amount of heat energy needed to raise the temperature of one gram of water by one degree Celsius. It equals approximately 4.184 joules.

History

The calorie was first defined by French chemist Nicolas Clément in 1824. It was widely used in chemistry and physiology before the joule became the official SI unit of energy.

Current use

Small calories are used in chemistry and physics for heat measurements. In everyday language, 'calorie' often refers to the kilocalorie (kcal) when discussing food energy.

Kiloelectronvolts (keV)

Definition

A kiloelectronvolt (keV) is a unit of energy equal to 1,000 electronvolts, or approximately 1.602 × 10⁻¹⁶ joules.

History

The keV became widely used in the mid-20th century with advances in X-ray physics, nuclear medicine, and particle accelerator research requiring intermediate energy scale measurements.

Current use

Kiloelectronvolts are used to characterize X-ray photon energies, nuclear decay energies, electron beam energies, and in medical imaging (CT, PET) to describe radiation energy levels.