PCB Impedance and Capacitance Calculator

calculate the impedance and capacitance of PCB traces

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Select the box with the geometry that you would like to calculate.
Microstrip

Microstrip
Embedded Microstrip

Embedded Microstrip
Stripline

Stripline
Dual Stripline

Dual Stripline
Asymmetric Stripline

Asymmetric Stripline
Differential Impedance of Microstrip

Differential Impedance of Microstrip
Differential Impedance of Stripline

Differential Impedance of Stripline
 

THESE FORMULAS ARE APPROXIMATIONS!
They should not be used when a high degree of accuracy is required.
The approximate formulas are provided along with restrictions on the relative size of the various parameters.

All the units are in SI (Iternational System):

  • [m] = meter
  • [s] = second
  • [H] = Henry
  • [F] = Farad

Reference and sources:

Calculators:


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