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Reactance Calculator

Capacitive and inductive reactance at a given frequency, and the resonant frequency of an LC pair.

Also known as capacitive reactance, inductive reactance, xc xl calculator.

Enter values

Results update as you type.

Result

Capacitive reactance Xc

159.155 Ω

Inductive reactance Xl
62.8319 Ω
Net reactance
-96.323 Ω
Resonant frequency
1,591.55 Hz

About the Reactance Calculator

Capacitive and inductive reactance at a given frequency, and the resonant frequency of an LC pair.

Also known as: capacitive reactance, inductive reactance, xc xl calculator, lc resonance.

How to use this calculator

  1. Enter frequency, capacitance, inductance.
  2. The result updates instantly as you type — press Calculate (or Enter) at any time.
  3. Review the breakdown shown under the main result.
  4. Use Copy result or Share to save the answer or send a link with your inputs.

Reactance formula

Xc = 1 / 2πfC · Xl = 2πfL · f₀ = 1 / 2π√(LC)

Worked example

Using the values pre-filled in the calculator above:

  • Frequency = 1,000 Hz
  • Capacitance = 1 µF
  • Inductance = 10 mH

the calculator returns:

  • Capacitive reactance Xc: 159.155 Ω
  • Inductive reactance Xl: 62.8319 Ω
  • Net reactance: -96.323 Ω
  • Resonant frequency: 1,591.55 Hz