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Mihsaba›Inductive Reactance Calculator

Inductive Reactance Calculator

Calculate inductive reactance from frequency and inductance with engineering units, plus angular frequency and optional RMS current.

These are ideal-circuit educational calculations; real component tolerance, temperature and parasitic effects are not modeled.

How to use

Inductive reactance is an ideal inductor’s opposition magnitude to sinusoidal AC and rises linearly with frequency and inductance.

  1. Enter frequency and unit.
  2. Enter inductance and unit.
  3. Optionally enter RMS voltage.
  4. Review XL, ω and current.

How it is calculated

XL=2πfL; ω=2πf; with RMS voltage: I=V/XL

Example

Example: 100 mH at 60 Hz gives XL≈37.70 Ω.

Important notes

A real inductor has winding resistance, losses and parasitic capacitance; this models ideal inductance.

Frequently asked questions

How does XL change with frequency?

It is directly proportional to f.

XL versus resistance?

Both use ohms, but ideal reactance does not dissipate energy like resistance.

Is µH supported?

Yes.