Copper Wire Self Inductance Calculator

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The phenomenon known as copper wire self-inductance occurs when an electromotive force (EMF) is produced by a copper wire in response to variations in the electric current passing through it.
According to Faraday’s law of electromagnetic induction, this self-induced EMF resists any change in the current.

Comprehending copper wire self-inductance is essential to managing and understanding electrical circuit behavior.
It aids in anticipating and reducing the impacts of self-inductance, which can affect the stability and performance of electrical systems. These consequences include voltage spikes and delays in current fluctuations.


  • Signal Processing
  • Power Transmission
  • Electromagnetic Compatibility

Understanding Copper Wire Self-Induction:

Factors affecting self-inductance

A copper wire’s self-inductance can be influenced by a number of circumstances, including:

Diameter of the wire: Compared to a wire with a bigger diameter, one with a smaller diameter will have a lower self-inductance. 

Length of the wire:In comparison to a shorter wire, a longer wire will have a higher self-inductance. 

Number of turns: The wire’s self-inductance can be greatly impacted by the number of twists. 

Material properties: The self-inductance of the wire can also be influenced by the permeability of the substance that makes it.

Applications of self-inductance

A key idea in a variety of electrical applications is self-inductance, which includes:

Inductors:Self-inductance is a technique used by inductors to store energy in a magnetic field. They are frequently found in transformers, oscillators, and filters. 

Circuits: When designing electrical circuits, self-inductance is crucial to take into account, especially for high-frequency circuits where the behavior of the circuit can be influenced by the inductive reactance of the wire. 

Magnetic resonance: In magnetic resonance applications like magnetic resonance spectroscopy and MRI equipment, self-inductance is also crucial. 

In summary, L = μ*N*A/I can be used to compute copper wire self inductance, a crucial idea in electrical engineering. A wire’s self-inductance is determined by a number of variables, such as its diameter, length, number of turns, and composition. Inductors, circuits, and magnetic resonance applications are just a few of the electrical applications where self-inductance is crucial to take into account. 

An online calculator that allows you to enter the diameter and length of an electrical wire to determine the wire’s self-inductance

Note : Don’t end with comma ( , )

Diameter of Wire (d)
Length of Wire (L)




  • d = Diameter of Wire
  • L = Length of Wire
  • ln – used to indicate the natural logarithm function

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