Indutância Solenoide

L = μ₀·N²·A/ℓ.
Created by
Renato Passos, Eng. de Software
Reviewed by
Renato Passos, Eng. de Software

Last updated: Apr 18, 2026

L (H)
0,003142 H

About this calculator

The Solenoid Inductance Calculator is an online tool that allows you to calculate the inductance of a solenoid, a fundamental component in electronics and electromagnetism. Inductance is a measure of the solenoid's ability to store magnetic energy. The formula used is L = μ₀·N²·A/ℓ, where L is the inductance, μ₀ is the magnetic permeability of free space, N is the number of turns, A is the cross-sectional area, and ℓ is the length of the solenoid.

The inductance of a solenoid depends on several factors, including the number of turns, cross-sectional area, and length of the solenoid. The magnetic permeability of free space (μ₀) is a physical constant that represents the ability of free space to support magnetic fields. The formula L = μ₀·N²·A/ℓ shows that inductance is directly proportional to the square of the number of turns and the cross-sectional area, and inversely proportional to the length of the solenoid.

This calculator is useful in various situations, such as designing electronic circuits, analyzing communication systems, and simulating magnetic fields. Additionally, it is essential to be careful with the units used, ensuring they are consistent with the International System of Units (SI).

When using the Solenoid Inductance Calculator, it is crucial to remember that the calculated inductance is an approximation, as the formula used assumes an ideal solenoid, without losses or imperfections. Therefore, it is essential to consider these factors when applying the results in practical projects or analyses.

Frequently asked questions

What is inductance?

Inductance is a measure of a component's ability to store magnetic energy.

What factors affect the inductance of a solenoid?

The factors that affect the inductance of a solenoid are the number of turns, cross-sectional area, and length of the solenoid.

What is the unit of measurement for inductance?

The unit of measurement for inductance is the Henry (H).

Can I use this calculator for solenoids with a ferrite core?

No, this calculator is for solenoids in a vacuum or air. For solenoids with a ferrite core, you need to consider the magnetic permeability of the core.

How can I minimize errors when using this calculator?

Check the units used and ensure the solenoid is ideal or close to it.

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