# Coaxial Cable Impedance Calculator

Online calculator provides the impedance of a coaxial cable in ohms for a given circuit.

In the field of engineering, a coaxial cable is an electrical cable consisting of an inner conductor enclosed by a tubular insulating layer and a tubular conducting shield. This online calculator provides the impedance of a coaxial cable in ohms for a given circuit. Simply enter the required values into the calculator below to determine the coaxial cable impedance, cutoff frequency, capacitance, inductance, and velocity of propagation.

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11
Number of calculations

- Z = (138 × log
_{10}(d_{1}/ (d_{2})) / √(R) - F = 11.8 / (√(R) × π × ((d
_{1}+ d_{2}) / 2)) - T =( (7.354 × R) / (log
_{10}(d_{1}/ d_{2})))/0.3048 - D = (140.4 × log
_{10}(d_{1}/ d_{2}))/0.3048 - V = (1 / √ (R)) × 100

**where,**

- Z = Impedance
- d
_{1}= Dielectric Outer Diameter - d
_{2}= Inner Conductor Diameter - R = Dielectric Constant
- F = Cutoff Frequency
- T = Capacitance
- D = Inductance
- V = Velocity of Propagation