# Coaxial Cable Impedance Calculator

In Engineering, Coaxial cable is a type of electrical cable that has an inner conductor surrounded by a tubular insulating layer, surrounded by a tubular conducting shield. Given here is an online coaxial cable impedance calculator to calculate the impedance of the coaxial cable in a circuit in terms of ohms. Just input the required values in the below calculator to determine the values of coaxial cable impedance, cutoff frequency, capacitance, inductance and velocity of propagation.

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In Engineering, Coaxial cable is a type of electrical cable that has an inner conductor surrounded by a tubular insulating layer, surrounded by a tubular conducting shield. Given here is an online coaxial cable impedance calculator to calculate the impedance of the coaxial cable in a circuit in terms of ohms. Just input the required values in the below calculator to determine the values of coaxial cable impedance, cutoff frequency, capacitance, inductance and velocity of propagation.

Code to add this calci to your website  #### Formula:

Z = (138 × log10 (d1 / (d2)) / √(R) F = 11.8 / (√(R) × π × ((d1 + d2) / 2)) T =( (7.354 × R) / (log10(d1 / d2)))/0.3048 D = (140.4 × log10(d1 / d2))/0.3048 V = (1 / √ (R)) × 100 Where, Z = Impedance d1 = Dielectric Outer Diameter d2 = Inner Conductor Diameter R = Dielectric Constant F = Cutoff Frequency T = Capacitance D = Inductance V = Velocity of Propagation

The coaxial cables generally fall into three main classes; 50 ohms, 75 ohms, and 95 ohms. However for most commercial RF applications 50 ohms coax cable has been taken as the standard for many years. This Coaxial cable impedance calculator will give you consistently reliable results.