Impedance Calculator

The Impedance Calculator will calculate the:

  1. The impedance of a RLC circuit when resistance, capacitance and inductance are given

Calculation parameters: The conducting wire of circuit and material the inductor is made from, are both uniform and they have the same thickness everywhere; the source supplies AC current.

Impedance Calculator
Impedance Calculator Results (detailed calculations and formula below)
The Impedance of the circuit is Ω [Ohm]
Impedance of the circuit calculation
Z = √R2 + 2 × π × fd × L - 1/2 × π × fd × C2
Z = √2 + 2 × × × - 1/2 × × × 2
Z = √ + - 1/2
Z = √ + - 2
Z = √ + 2
Z = √ +
Z = √
Z =
Impedance Calculator Input Values
Driving frequency of the circuit (fd) Hz [Hertz]
Resistance of the resistor (R) Ω [Ohm]
Inductance of the inductor (L) H [Henry]
Capacitance of the capacitor (C) F [Farad]
Archimedes constant (π)

Please note that the formula for each calculation along with detailed calculations are available below. As you enter the specific factors of each impedance calculation, the Impedance Calculator will automatically calculate the results and update the Physics formula elements with each element of the impedance calculation. You can then email or print this impedance calculation as required for later use.

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[ 8 Votes ]
Discover Physics with free Physics Revision Notes and Physics Calculator: Impedance. This image shows the properties and impedance formula for the Impedance. The Impedance Calculator will calculate the impedance of a RLC circuit when resistance, capacitance and inductance are given. Note: The conducting wire of circuit and material the inductor is made from, are both uniform and they have the same thickness everywhere; the source supplies AC current

Related Physics Sections with Tutorials

Section 15: Electrodynamics

Section 16: Magnetism

Section 17: Electronics

Section 22: Cosmology

Impedance of the circuit Formula and Calculation

Z = √R2 + 2 × π × fd × L - 1/2 × π × fd × C2

This formula derives from

Z = √R2 + ωd × L - 1/ωd × C2

where

ωd = 2 × π × fd

is the driving angular frequency in the RLC circuit.

Magnetism Physics Tutorials associated with the Impedance Calculator

The following Physics tutorials are provided within the Magnetism section of our Free Physics Tutorials. Each Magnetism tutorial includes detailed Magnetism formula and example of how to calculate and resolve specific Magnetism questions and problems. At the end of each Magnetism tutorial you will find Magnetism revision questions with a hidden answer that reveals when clicked. This allows you to learn about Magnetism and test your knowledge of Physics by answering the test questions on Magnetism.

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