How to use the inductive and capacitive reactance calculator
Compute reactance of an inductor and capacitor at a frequency. Enter frequency, inductance, capacitance in the fields above; the inductive reactance xl, capacitive reactance xc are computed instantly and plotted on the chart so you can see how the answer changes.
Formula
Variables
- f — Frequency (Hz)
- L — Inductance (mH)
- C — Capacitance (µF)
Worked example
With frequency = 1000 Hz, inductance = 10 mH, capacitance = 1 µF, the calculator gives inductive reactance xl ≈ 62.83185 Ω; capacitive reactance xc ≈ 159.1549 Ω.
Frequently asked questions
What is the formula for the inductive and capacitive reactance calculation?
Inductive reactance XL (Ω) = 2 × π × f × L / 1000. Capacitive reactance XC (Ω) = 1 / (2 × π × f × C × 1e-6). Here f is frequency (Hz), L is inductance (mH), C is capacitance (µF).
What inputs do I need for the inductive and capacitive reactance calculator?
You need frequency in Hz, inductance in mH, capacitance in µF. Each field is pre-filled with a typical example so you can see how the result responds as you edit the numbers.
How do I use this calculator?
Type values into the input fields. Results and the chart update instantly. Use Reset to restore the example values, Copy results to paste them elsewhere, or Share to copy a link that preserves your inputs.
Is the result exact?
Calculations use standard formulas and double-precision arithmetic, then display about seven significant figures. Real-world measurements carry uncertainty, so treat results as estimates unless your inputs are exact.