Impedance Calculator

STLC – Sequid Transmission Line Calculator

Visit the STLC product page to learn more about the full STLC software tool.

With our free impedance calculator, you can compute the characteristic impedance of PCB traces directly in your browser – no signup or installation required. The online calculator covers common configurations such as microstrip, coated microstrip, and stripline, each in single-ended and differential form. Simply enter the geometry and substrate permittivity to get a reliable result in seconds.


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Z₀ = Ω