About the Impedance Calculator
Total impedance of a series RLC circuit, with the phase angle and power factor.
Also known as: rlc impedance, z calculator, ac impedance, phase angle calculator.
How to use this calculator
- Enter resistance, frequency, inductance, capacitance.
- The result updates instantly as you type — press Calculate (or Enter) at any time.
- Review the breakdown shown under the main result.
- Use Copy result or Share to save the answer or send a link with your inputs.
Formula
Z = √(R² + (Xl − Xc)²) · φ = arctan((Xl − Xc)/R)
Worked example
Using the values pre-filled in the calculator above:
- Resistance = 100 Ω
- Frequency = 50 Hz
- Inductance = 100 mH
- Capacitance = 100 µF
the calculator returns:
- Impedance: 100.0009 Ω
- Inductive reactance: 31.4159 Ω
- Capacitive reactance: 31.831 Ω
- Net reactance: -0.4151 Ω