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The skin depth calculator allows you to determine the skin effect in conductors for any signal frequency.

Calculate RF skin depth for conductors at any frequency. Material database with conductivity and permeability values.
The skin depth calculator allows you to determine the skin effect in conductors for any signal frequency.
| Site | Description | Screenshot | Votes |
|---|---|---|---|
| Financial Toolset financialtoolset.com | 7 | ||
| Omni Calculator omnicalculator.com | 5 |
Its Wire Gauge Calculator includes AWG-based diameter conversion in both inches and millimeters, plus cross-sectional area and resistance outputs. The page explains the AWG formulas and provides reference values, making it useful for both quick conversion and verification.
This AWG chart includes a row for 2 AWG with diameter, cross‑sectional area, resistance, and ampacity. It serves as a detailed lookup for #2 gauge wire data. ([electricaltechnology.org](https://www.electricaltechnology.org/2022/04/american-wire-gauge-awg-chart-wire-size-ampacity-table.html))
LED resistor calculator tells you what resistor you should use when connecting LEDs in series or parallel.