Inductive reactance calculator

Calculate inductor reactance, impedance and voltage at any frequency.

Schematic

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Reactance magnitude62.83 Ω

Impedance response

Inspect frequency

Current amplitude	1 mA
Impedance phase	90°

Advanced results

Signed reactance	62.83 Ω
Voltage amplitude	62.83 mV

An inductor opposes changing current. Its reactance increases with frequency and inductance. Current lags voltage by 90° for an ideal inductor.

X_L = 2\pi fL

Ideal inductor; winding resistance, core losses and saturation are excluded. AC amplitudes use peak values.

Change the form inputs or click a component value on the schematic. Choose Try in CircuitSim to simulate the configured circuit.

Reactance magnitude: $X_L=2\pi fL$
$2\pi\times 1\,\mathrm{kHz}\times 10\,\mathrm{mH}$
≈ 62.83 Ω
Voltage amplitude: $|V|=|I||Z|$
$1\,\mathrm{mA}\times 62.83\,\mathrm{\Omega}$
≈ 62.83 mV