RLC Resonant Frequency Calculator

Calculate resonant frequency and visualize circuit behavior in real-time.

Circuit Parameters

Circuit Type
Ω

Calculated Results

Resonant Frequency (f₀) ...
Quality Factor (Q) ...
Bandwidth (BW) ...
Impedance @ f₀ ...

Frequency Response

This chart shows the circuit's impedance across a range of frequencies. Notice the sharp dip at the resonant frequency for the series circuit.

What is Resonance?

In an RLC circuit, resonance is a condition that occurs at a specific frequency, called the resonant frequency ($f_0$). At this frequency, the inductive reactance ($X_L$) and capacitive reactance ($X_C$) are equal in magnitude and cancel each other out. This causes the circuit to behave as if it's purely resistive. The result is a dramatic change in the circuit's total impedance (its opposition to current flow), leading to a peak in current (for series circuits) or voltage (for parallel circuits). This phenomenon is fundamental to tuning circuits used in radios, filters, and oscillators.

Scroll to Top

Instant Quote

Scan the code