Impedance Calculator for JLCPCB

About This Tool

This impedance calculator tool helps PCB designers and engineers quickly determine transmission line impedance—vital for high-frequency and RF PCB applications. By inputting parameters such as dielectric constant, substrate height, trace width, and line type, users receive precise impedance values based on electromagnetic models like Wheeler or Hammerstad equations.

The tool supports microstrip, stripline, and coplanar waveguide configurations, making it versatile for various PCB architectures. It features automatic validation of inputs, instant calculations, and clear output results formatted to two decimal places, facilitating quick iterations during design process.

Ideal for electrical engineers, RF designers, hobbyists, and PCB fabricators, this tool ensures your transmission lines meet specified impedance criteria, reducing signal loss and interference. It integrates seamlessly into design workflows, with options to copy results, export calculations, and view history for comparison and documentation purposes.

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