Calculadora de Indutância

The Inductance Calculator is an online tool that calculates the inductive reactance (X_L) of an inductor (coil) based on frequency (f) and inductance (L). Inductive reactance is the opposition that the inductor offers to alternating current, measured in ohms (Ω). The calculation uses the formula X_L = 2π·f·L, where f is in hertz (Hz) and L in henrys (H). This tool is useful for electronic circuit designers, engineering students, and technicians who need to size components in filters, switching power supplies, or RF circuits.

How it works: simply enter the frequency and inductance values in the appropriate fields. The calculator automatically applies the formula and displays the inductive reactance result. It's important to use consistent units: frequency in hertz and inductance in henrys. If values are in submultiples (e.g., kHz or mH), convert them to base units first. The tool is free to use and requires no registration.

When to use: this calculator is ideal for sizing inductors in low-pass and high-pass filters, resonant (LC) circuits, switching power supplies, and transformers. It's also useful for checking coil impedance at specific frequencies. For example, when designing an audio filter, you can calculate the reactance to determine the cutoff frequency.

Common precautions: note that inductive reactance is valid only for alternating current (AC). In direct current (DC), the reactance is zero (ideal short circuit). Additionally, the formula assumes an ideal inductor; real components have parasitic resistance (R) and parasitic capacitance that can affect behavior at high frequencies. For accurate calculations, use measured values or datasheets.