Coax Calculator for Coaxial Cables
You provide Outer Diameter (D), Inner Diameter (d), and Permittivity (εr) values then the calculator gives you Zo (ohms), fc Cut off frequency(GHz), C/length (pF/m), and inductance L/length (nH/m). Other tools are available for impedance measurement, dbm to milli watt converter, reflection coefficient calculator, etc.