Inductor Impedance Calculator


Inductor Reactance Formula

The inductor impedance calculator calculates the impedance of an inductor based on the value of the inductance, L, of the inductor and the frequency, f, of the signal passing through the inductor, according to the formula, XL= 2πfL.

A user enters the inductance, L, and the frequency, f, and the result will automatically be calculated and shown. The impedance result which is displayed above is in unit ohms (Ω).

The impedance calculated is a measure of the inductor's resistance to a signal passing through. Inductors have higher impedance to higher frequency signals; and, conversely, they have lower impedance to signals of lower frequency. This means that lower frequency signals will have lower impedance (or resistance) passing through an inductor, while higher frequency signals will have higher impedance passing through an inductor. This means that in our calculator, above, the higher the frequency you enter, the higher the impedance will be. And the lower the frequency you enter, the lower the impedance will be. The same effect that the frequency of the signal has, the inductance of the inductor has as well. The higher the inductance of the inductor, the higher the impedance. Conversely, the lower the inductance, the lower the impedance.

Related Resources

How to Calculate the Voltage Across an Inductor

How to Calculate the Current Through an Inductor

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