Reactance Calculator

Inductive Reactance/Admittance
Capacitive Reactance/Admittance

Reactance

Inductance (L)

Frequency (f)

Reactance (|X_L|)

= Ω

Admittance (|B_L|)

= S

Inductance

Reactance (|X_L|)

Frequency (f)

Inductance (L)

= H

Admittance (|B_L|)

= S

Formula

Reactance

Capacitance (C)

Frequency (f)

Reactance (|X_C|):

= Ω

Admittance (|B_C|):

= S

Capacitance

Reactance (|X_C|):

Frequency (f):

Capacitance (C)

= F

Admittance (|B_C|)

= S

Formula

Reactance Calculator

Calculate capacitive and inductive reactance in AC circuits using this Reactance Calculator. Ideal for electrical engineers, students, and circuit designers.

The Reactance Calculator helps you determine the reactance of a capacitor or inductor in an alternating current (AC) circuit. Reactance is the opposition to the flow of alternating current and is frequency-dependent. This tool simplifies complex calculations and provides quick results for both capacitive and inductive components.

Key Features

Calculate capacitive reactance (X_C)
Calculate inductive reactance (X_L)
Input frequency and component values easily
Supports both low and high frequency ranges
Instant results with unit conversion (Ohms)

How to Use the Calculator

Select whether you’re calculating for a capacitor or inductor
Enter the frequency of the AC signal (in Hz)
Enter the capacitance (in Farads) or inductance (in Henrys)
Click calculate to get the reactance in Ohms (Ω)

Use Cases

Designing filters and tuning circuits
Understanding impedance in AC circuits
Testing audio systems and signal paths
Educational applications for physics and engineering
Building or repairing analog and RF electronics

Formulas Used

Capacitive Reactance (X_C): X_C = 1 / (2πfC)
Inductive Reactance (X_L): X_L = 2πfL
Where:
- f = frequency in Hertz (Hz)
- C = capacitance in Farads (F)
- L = inductance in Henrys (H)

Tips for Accurate Results

Ensure correct units: Farads for capacitors, Henrys for inductors
Use scientific notation for small/large component values
Double-check your frequency input—errors here impact results drastically
Remember that reactance changes with frequency

Conclusion

With the Reactance Calculator, you can quickly and accurately determine how components will behave in AC circuits. Whether you're designing, analyzing, or learning about electronics, this tool makes complex electrical concepts simple and accessible.