Convert Kilocalorie to Electronvolt

One kcal equals 2.611447e+22 eV. This converter allows you to easily convert between Kilocalorie and Electronvolt in real time.

Formula

kcal × 2.611447e+22 = eV

Example: 1 kcal = 2.611447e+22 eV

What is Kilocalorie?

The kilocalorie equals 1,000 thermochemical calories and is the standard unit for food energy labeling in Japan, the United States, and many other countries. It is often written as "Cal" (with a capital C) or simply called a "Calorie" on food packages. A bowl of rice (150 grams) contains about 235 kcal, a slice of bread about 160 kcal, and 30 minutes of walking burns roughly 100 kcal.

What is Electronvolt?

The electronvolt is a unit of energy widely used in particle physics and quantum mechanics. It equals the energy gained by a single electron accelerating through a potential difference of one volt, approximately 1.602 times 10 to the minus 19 joules. Visible light photons have energies of about 1.8 to 3.1 eV, X-rays range from a few keV to hundreds of keV, and particle accelerators work with energies of GeV to TeV. Semiconductor band gaps are also expressed in eV, with silicon at about 1.12 eV.