Skin Effect Calculator

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Skin Effect = 7.6 / Sqrt(Frequency) (cm)

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Skin Depth:
What is the Skin Effect?

The skin effect is a phenomenon whereby alternating electric current does not flow uniformly with respect to the cross-section of a conductive element, such as a wire. The current density is highest near the surface of the conductor and decreases exponentially as distance from the surface increases.

"Skin depth" refers to the point at which the current density reaches approximately 37% of its value at the surface of the conductor. Calculating skin depth requires the frequency of the AC signal and the resistivity and relative permeability of the conductive material. To use this calculator, just select the material type and enter the signal frequency. The resistivity and relative permeability of the chosen material will be automatically given.

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