Calculate the inductive reactance of an inductor at any frequency. Enter frequency and inductance to calculate XL using the standard formula XL = 2πfL. Results are provided in ohms.
Enter the operating frequency and inductor value to calculate inductive reactance.
XL = inductive reactance
f = frequency in Hz
L = inductance in henries
Inductive reactance is calculated by multiplying angular frequency by inductance.
For a fixed inductor, increasing frequency increases inductive reactance.
For a fixed frequency, increasing inductance increases inductive reactance.
The calculator converts your selected frequency and inductance units into SI units before applying the inductive reactance formula.
Enter the operating frequency in Hz, kHz, MHz, or GHz.
Enter the inductor value in nH, µH, mH, or H.
The calculator applies XL = 2πfL and displays the result in ohms.
Consider a 10 µH inductor operating at a frequency of 100 kHz.
| Quantity | Value |
|---|---|
| Frequency | 100,000 Hz |
| Inductance | 10 µH |
| Inductance in henries | 0.00001 H |
| Formula | XL = 2πfL |
| Reactance | ≈ 6.28 Ω |
Therefore, a 10 µH inductor has approximately 6.28 Ω of inductive reactance at 100 kHz.
Calculate inductor reactance when designing low-pass, high-pass, and other frequency-selective circuits.
Determine how strongly an inductor opposes AC current at a particular frequency.
Use inductive reactance when analyzing the impedance and frequency response of RLC networks.
Estimate inductor reactance in RF matching, filtering, tuning, and signal-conditioning circuits.
Unlike an ideal resistor, an inductor's opposition to AC changes with frequency. As frequency increases, inductive reactance increases proportionally. At zero frequency, an ideal inductor has zero reactance, while at higher frequencies it can present substantial opposition to alternating current.
Explore more tools for circuit analysis, AC circuits, components, signals, power, and electrical units.
Inductive reactance is the opposition an inductor presents to alternating current. It is measured in ohms and is represented by XL.
The standard formula is XL = 2πfL, where XL is inductive reactance in ohms, f is frequency in hertz, and L is inductance in henries.
Inductive reactance increases as frequency increases. For a fixed inductor, XL is directly proportional to frequency.
Inductive reactance increases when inductance increases. A larger inductance produces greater opposition to AC at the same frequency.
For an ideal inductor at zero frequency (DC), inductive reactance is zero. After the transient response, an ideal inductor behaves like a short circuit in steady-state DC.
Frequency should be expressed in hertz and inductance in henries. The resulting inductive reactance is expressed in ohms.