AbraCalc

LC Resonant Frequency of 5 mH and 20 µF

Calculate the resonant frequency for a 5 mH and 20 µF LC circuit, a common audio crossover configuration.

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How to use this tool

  1. Enter inductance (l) and capacitance (c) in the fields above.
  2. Results update instantly as you type — or click Calculate.
  3. Read your resonant frequency and the full breakdown beneath it.

This 5 mH and 20 µF LC combination is frequently used in speaker crossover networks and band-pass filter designs.

Frequently asked questions

What is a tank circuit?
A parallel LC circuit used to select or generate a specific frequency, common in radio transmitters and AM/FM receivers.
How do I convert µH to mH?
Divide by 1000. For example, 100 µH = 0.1 mH. Enter 0.1 in the inductance field.