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Electrical

Skin Depth Calculator

Estimate electromagnetic skin depth for a good conductor at a specified frequency.

Ideal component relationshipsUnits and assumptions explained below
Circuit workbench
Circuit workbench

Keep RMS, peak and DC values distinct.

See the method

Enter circuit values

Runs on your device

Your circuit result

Your result

Let’s calculate.

Use the Calculate button to see your result.

Review the method below for assumptions and conventions.

How to use this tool

  1. Enter frequency, resistivity, relative permeability.
  2. Select Calculate to view the result.
  3. Check the method and assumptions below before using the result.

The method, explained

Skin depth δ = sqrt(ρ/(πfμ0μr)), with μ0 approximated as 4π×10⁻⁷ H/m.

A WORKED EXAMPLE

Using frequency = 1000000 Hz, resistivity = 1.68e-8 Ω·m, relative permeability = 1, the result is 0.0652341146 mm. Change these example inputs to match your task; use the method above to check each step.

Understanding your result

Good-conductor approximation with constant permeability. Magnetic materials may have frequency-dependent properties.

What to keep in mind

Good-conductor approximation with constant permeability. Magnetic materials may have frequency-dependent properties. Ideal-component calculation for study and estimation. It does not select safe wiring, protective devices or component ratings for an installation.

Common questions

How do I use this skin depth calculator?

Estimate electromagnetic skin depth for a good conductor at a specified frequency. Enter frequency in Hz, resistivity in Ω·m, relative permeability. The starting example is editable; use values for the same system or project.

Which assumptions affect this result?

Good-conductor approximation with constant permeability. Magnetic materials may have frequency-dependent properties.

Methodology maintained by ClarityKit. How these tools are built and checked.