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Coax Cable Impedance Calculator

  
Enter the Outer Diameter (D), Inner Diameter (d), and Permittivity (εr) values.
  
Outer Diameter (D), Inner Diameter (d) Values in    milli meters: (or)   inches:
D d εr
  
  
Zo (ohms) fc (GHz)
  
  
  




Where,

d = The outside diameter of the inner or center conductor.

D = Inside diameter of the shield.

εr = Dielectric constant of the insulator.

Z0 = Characteristic impedance.

fc = Cutoff frequency.

C = Shunt capacitance per unit length.

L = Series inductance per unit length.