Electron Volt to Terajoule Converter

An electron volt (eV) is a unit of energy equal to approximately 1.602 × 10⁻¹⁹ joules. It represents the kinetic energy gained by an electron when accelerated through an electric potential difference of one volt.

The electron volt was introduced in the early 20th century with the development of atomic and nuclear physics. It provided a convenient energy scale for atomic and subatomic processes, where joules would result in extremely small numbers with many decimal places.

Electron volts are extensively used in atomic physics, nuclear physics, particle physics, and materials science. They're standard for measuring atomic binding energies, photon energies, particle accelerator energies, and electronic band gaps in semiconductors.

A terajoule (TJ) is a unit of energy equal to one trillion joules (10¹² J). It represents enormous amounts of energy, typically used for measuring energy consumption of large cities, industrial processes, or natural phenomena.

The terajoule emerged as energy consumption and production reached massive scales in the 20th century. It became necessary for describing energy in large power plants, national energy statistics, and major industrial processes where smaller units would result in unwieldy numbers.

Terajoules are used for measuring energy consumption of large cities, output of major power plants, industrial energy usage, and in energy policy and planning. They're standard in national energy statistics, large-scale renewable energy projects, and major industrial facility energy audits.