RLC Circuit Calculator (Solve for Frequency)

Enter the total capacitance and total inductance of an RLC circuit to calculate the frequency of that circuit. An RLC circuit consists of 3 components, a resistance, impedance, and a capacitance.

RLC Circuit Formula

The following equation can be used to calculate the frequency of an RLC circuit.

F = 1 / [2π * √(L * C)]

  • Where F is the frequency (Hz)
  • L is the inductance (Henries, H)
  • C is the Capacitance (Farads)

RLC Circuit Definition

An RLC circuit is defined as an electrical circuit with a resistor, inductor, and capacitor.

RLC Circuit Uses

In this case the equation can only be used when these three components are combined in a series. This would not apply if they were connected in some other way.

The three main uses for RLC Circuit are as follows:

  1. Filters
  2. Tuning Circuits
  3. Oscillators circuits.

Oscillator circuits are likely the most common. These can convert DC signal to AC signal.

How to calculate RLC circuit frequency?

How to calculate an RLC circuit frequency?

  1. First, determine the inductance.

    Measure the inductance of the inductor.

  2. Next, measure the capacitance.

    Measure the capacitance of the circuit.

  3. Finally, calculate the frequency.

    Use the equation above to calculate the frequency.

RLC Circuit Calculator
rlc circuit formula