Convert Kiloelectronvolts (keV) to Calories (cal)

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

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Conversion:

1 Kiloelectronvolts (keV) = 3.8292940583e-17 Calories (cal)

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

1 kev = 3.8292940583e-17 cal

1 cal = 26114473968000000 kev

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

25 kev = 9.5732351458e-16 cal

Kiloelectronvolts (keV) to Calories (cal) Conversion Table

Kiloelectronvolts (keV)Calories (cal)
0.01 kev3.8292940583000003e-19 cal
0.1 kev3.8292940583e-18 cal
1 kev3.8292940583e-17 cal
2 kev7.6585881166e-17 cal
3 kev1.1487882175e-16 cal
5 kev1.9146470292e-16 cal
10 kev3.8292940583e-16 cal
20 kev7.6585881166e-16 cal
50 kev1.9146470291999998e-15 cal
100 kev3.8292940583e-15 cal
1000 kev3.8292940583e-14 cal

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.

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.