LC Resonant Frequency Calculator
Find the resonant frequency of an LC circuit.
Result
How to use
- Enter your values in the fields above.
- Press Calculate to see your result instantly.
- Use the Share button to copy a link to your result.
About this calculator
This calculator applies Thomson's formula, f = 1 / (2π√(LC)), to find the frequency at which an inductor-capacitor circuit naturally oscillates — the point where inductive and capacitive reactance cancel each other out.
It's used by electronics hobbyists tuning radio receiver circuits, RF engineers designing filters and impedance-matching networks for antennas, and students verifying lab measurements of a tank circuit's resonant frequency against the theoretical value.
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