Coil Inductance Calculator 1.1

The Coil Inductance Calculator is a tool designed to determine the inductance of a wire coil based on various input parameters such as the number of turns, loop diameter, wire diameter, and permeability of the medium.

The calculation is based on the following equation:

L-coil = inductance of the coil in henries (H)

N = number of wire turns

D = loop diameter

d = wire diameter

μ₀ = permeability of free space = 4π×10−7

μr = relative permeability

An inductor, which is also known as a coil, choke, or reactor, is a passive electrical component with two terminals that stores energy in a magnetic field when an electric current passes through it. Essentially, it consists of a conductor wound into a coil, and the flow of electricity through the coil generates a magnetic field in a specified direction.

When the current passing through an inductor changes, a time-varying magnetic field induces a voltage in the conductor, as described by Faraday's law of induction. Following Lenz's law, the direction of the induced electromotive force (e.m.f.) opposes the change in current that caused it. Consequently, inductors resist changes in current flow.

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