LC Low-Pass Filter Calculator
Calculate ideal second-order LC resonant frequency from inductance and capacitance.
A QUICK WALKTHROUGH
How to use this tool
- Enter values in the stated matching units.
- Review the idealized formula and scope.
- Calculate locally in your browser.
Formula and limits
f₀=1/(2π√(LC)). Ideal undamped resonance only; topology and load affect real cutoff. This is not a regulatory limit, equipment rating, or circuit safety review.
Privacy
Inputs are calculated locally and not uploaded.
GOOD TO KNOW
Common questions
Does this certify capacity or component suitability?
No. It evaluates the stated equation only.