Inductive Reactance Calculator
Find an inductor's reactance at a given frequency.
Inductive reactance is an inductor's frequency-dependent opposition to AC current.
The math behind it
XL = 2π·f·L. It rises with frequency, so inductors block high frequencies.
Worked example
60 Hz, 100 mH → about 37.7 Ω.
FAQ
Why does it pass DC?
At 0 Hz the reactance is zero, so DC flows freely (limited only by wire resistance).