# Cylindrical Capacitor Calculator

To use cylindrical capacitor calculator, select the option, fill the required input fields, and press the calculate button

F/m
m
m
m
F

## Formula

Capacitance :
C = 2π εL/In( b/a)

Permittivity :
ε = Cln (b/a)/2πL

Length of Conductors :
L = Cln(b/a)/2π ε

Outer Conductor Diameter :
b = ae (2πL/C)

Inner Conductor Diameter :
a = b/e (2π L/C)

Where,
C = Capacitance,
ε = Permittivity,
L = Length of Conductors,
b = Outer Conductor Diameter,
a = Inner Conductor Diameter.

Cylindrical Capacitor refers to a capacitor that is made up of two concentric metal cylinders of the same length, with dielectric filling the space between the cylinders. The cylindrical capacitor is also known as coaxial capacitor.

The advanced online Cylindrical Capacitor Calculator is used to calculate the capacitance for cylindrical capacitor.

Example:
Calculate the capacitance for the cylindrical capacitor by the given details.
Permittivity (ε) = 5 F/m
Length of Conductors (L) = 4 m
Outer Conductor Diameter (b) = 3 m
Inner Conductor Diameter (a) =2 m

Solution:
Apply Formula:
C = 2π εL/In ( b/a)
C = 2*3.14*5*4/ (3/2)
C = 309.77 F
Capacitance (C) = C = 309.77 F

### References:

1. What is the Cylindrical capacitor and its formula? | Testbook (n.d.-b).
2. Coaxial cylindrical capacitor | Physics LibreTexts