Calculate the opposition to AC current flow caused by an inductor.
Electrical Parameters
Calculation Results
Enter inductance and frequency to calculate
About this calculator
Quick Reference
X_LReactance (Ohms)
fFrequency (Hertz)
LInductance (Henrys)
Overview
Inductive reactance (XL) is the opposition offered by an inductor to the flow of alternating current. Unlike resistance, reactance depends on the frequency of the AC signal.
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Pro Tips
Inductive reactance increases as the frequency increases.
In contrast, capacitive reactance decreases as frequency increases.
An ideal inductor has zero DC resistance but potentially high AC reactance.
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Fun Facts
"Inductors 'resist' changes in the current flowing through them."
"Reactance is measured in Ohms ($Ω$), just like resistance."
"At very high frequencies, even a straight wire can have significant inductive reactance."
