LC Filter Calculator
f ≈ 1 / (2π√(LC))
Instructions
Enter inductance (H) and capacitance (F). The formula returns the ideal resonant frequency, which approximates LC filter cutoff.
Formula
f = 1 / (2π√(LC))
Common Questions
Does topology matter?
Yes. Exact cutoff depends on filter type (e.g., π, T, ladder). This is a widely used ideal approximation.