Convert Kilowatt Hours to Electronvolts

The Kilowatt Hour (symbol: kWh) is a unit of energy. The global standard unit of electrical energy billing — exactly one kilowatt of power consumed (or generated) for exactly one hour, equal to 3,600,000 joules (3.6 MJ). The kWh is the universal residential and commercial electricity meter unit per IEC 62052 / ANSI C12.20 metering standards. Reference values: a typical US household consumes ~900 kWh per month (~30 kWh/day), the US national average residential electricity rate is ~$0.16/kWh as of 2025 EIA data, EV battery capacities are quoted in kWh (Tesla Model 3 Long Range 75 kWh, Model S Plaid 95 kWh, Ford F-150 Lightning Extended Range 131 kWh), residential solar systems are sized by expected annual kWh production (a 6 kW rooftop array typically produces 7,000-10,000 kWh/year depending on insolation), EV efficiency runs 0.25-0.35 kWh per mile (3-4 mi/kWh). The wholesale electricity market trades in MWh (megawatt-hours) and the bulk-power grid is balanced in GWh and TWh. 1 kWh = 3.6 MJ = 3,412 BTU = 860 kcal.

It belongs to the metric measurement system.

Kilowatt Hours are commonly used in nutrition, electrical billing, physics, and mechanical engineering.

The Electronvolt (symbol: eV) is a unit of energy. A unit of energy equal to the kinetic energy gained by an electron accelerating through an electric potential difference of one volt in vacuum, defined since the 2019 SI redefinition as exactly 1.602176634 × 10⁻¹⁹ joules (CODATA 2018, BIPM SI Brochure). The electronvolt is the natural working unit of atomic, molecular, and particle physics where joules are too large to be convenient: chemical bond energies are a few eV (C-C bond ~3.6 eV, O-H bond ~4.8 eV), photon energies in the visible spectrum are 1.6-3.1 eV (red to violet), X-rays carry keV (medical diagnostic ~80-140 keV, hard X-ray ~10-100 keV), nuclear-reaction Q-values are MeV (fission of U-235 releases ~200 MeV per atom), particle-collider beam energies are GeV-TeV (LHC operates at 13.6 TeV center-of-mass), and astrophysical sources reach PeV / EeV (highest-energy cosmic rays ~3 × 10²⁰ eV = 300 EeV). Particle physics papers in Physical Review D, JHEP, Nature Physics, and the PDG Review of Particle Physics report all energies, masses (E = mc² gives a free conversion), and cross-sections in eV or its derivatives. 1 eV ≈ 1.602 × 10⁻¹⁹ J ≈ 1.602 × 10⁻¹² erg.

Electronvolts are commonly used in nutrition, electrical billing, physics, and mechanical engineering.