Convert Watt-hour to Electronvolt

One Wh equals 2.246943e+22 eV. This converter allows you to easily convert between Watt-hour and Electronvolt in real time.

Formula

Wh × 2.246943e+22 = eV

Example: 1 Wh = 2.246943e+22 eV

What is Watt-hour?

The watt-hour is a unit of energy equal to 3,600 joules, representing the energy used by one watt of power over one hour. It is commonly used for portable battery capacities; a typical power bank rated at 5,000 mAh at 3.7 V holds about 18.5 Wh. Airline regulations for lithium-ion batteries are also specified in watt-hours, with batteries under 100 Wh generally permitted in carry-on luggage.

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.