Ampere to Kiloampere Converter

An ampere (A) is the SI base unit of electric current, defined as the flow of one coulomb of electric charge per second. It represents the fundamental measure of electrical current flow in a conductor.

The ampere was named after French physicist André-Marie Ampère in 1881. Originally defined in terms of the force between current-carrying conductors, it was redefined in 2019 based on the elementary charge, providing a more fundamental and precise definition tied to quantum mechanics.

Amperes are universally used for measuring electrical current in all applications, from household electronics to industrial systems. They're essential for electrical safety, circuit design, power calculations, and are found on every electrical device rating, fuse, and circuit breaker.

A kiloampere (kA) is a unit of electric current equal to one thousand amperes. It represents high current levels typically found in industrial electrical systems, welding applications, and power distribution networks.

The kiloampere became important with the growth of heavy industry and high-power electrical systems in the early 20th century. It was particularly useful for describing currents in industrial welding, electroplating, and power distribution systems where currents regularly exceeded hundreds of amperes.

Kiloamperes are commonly used in industrial welding, electroplating, power distribution systems, electric arc furnaces, and railway electrification. They're standard in electrical engineering for high-power applications, industrial motor drives, and electrical fault current calculations.