# Capacitance of Capacitor. Online Calculator.

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Online calculator for calculating the capacitance of a capacitor, helps you to calculate the electrical capacity C of
flat (parallel-plate capacitor), cylindrical and spherical capacitors and gives a detailed solution.
Units of measurement can include any SI prefixes. The calculator automatically converts one SI prefix to another.

Calculator calculates:

Capacitance of a parallel-plate capacitor.

Capacitance of a cylindrical capacitor.

Capacitance of a spherical capacitor.

Parallel Plate Capacitor Capacitance Calculator

**A parallel plate capacitor consists of two parallel conducting plates separated by a dielectric, located at a small distance from each other.**

The electrical capacity C of parallel plate capacitor is equal to the product of the vacuum permittivity Îµ

Îµ

The SI unit of capacitance is the farad (F).

An electrical capacity of 1 Farad is a very large capacity, for example, a 1 Farad capacity has a sphere 13 times the radius of the Sun, therefore, sub-multiples of Farad units are mainly used.

The electrical capacity C of parallel plate capacitor is equal to the product of the vacuum permittivity Îµ

_{0}, permittivity of the dielectric e and the area S of the capacitor plate, divided by the distance d between the plates where,Îµ

_{0}= 8.85418781762039 Ã— 10^{-12}The SI unit of capacitance is the farad (F).

An electrical capacity of 1 Farad is a very large capacity, for example, a 1 Farad capacity has a sphere 13 times the radius of the Sun, therefore, sub-multiples of Farad units are mainly used.

Area of one plate (it is assumed that the plates are the same) S =

Separation between the plates d =

The SI unit of capacitance C

Cylindrical Capacitor Capacitance Calculator

**A cylindrical capacitor is a capacitor, the plates of which are two cylinders, the inner one with the radius R**

The electrical capacity of a cylindrical capacitor is determined by the formula, where

Ï€ â€“ the number Pi (3.1415926535897932384626433832795â€¦)

Îµ

Îµ â€“ permittivity of dielectric

l â€“ length of the cylinder

ln â€“ natural logarithm

R

R

The SI unit of capacitance is the farad (F).

An electrical capacity of 1 Farad is a very large capacity, for example, a 1 Farad capacity has a sphere 13 times the radius of the Sun, therefore, sub-multiples of Farad units are mainly used.

_{1}and the outer one with the radius R_{2}. Between the plates there is a dielectric whose permittivity is Îµ.The electrical capacity of a cylindrical capacitor is determined by the formula, where

Ï€ â€“ the number Pi (3.1415926535897932384626433832795â€¦)

Îµ

_{0}â€“ vacuum permittivity, Îµ_{0}= 8.85418781762039 Ã— 10^{-12}Îµ â€“ permittivity of dielectric

l â€“ length of the cylinder

ln â€“ natural logarithm

R

_{1}â€“ inner radiusR

_{2}â€“ outside radiusThe SI unit of capacitance is the farad (F).

An electrical capacity of 1 Farad is a very large capacity, for example, a 1 Farad capacity has a sphere 13 times the radius of the Sun, therefore, sub-multiples of Farad units are mainly used.

Radius R1 =

Radius R2 =

Length l =

The SI unit of capacitance C

Spherical Capacitor Capacitance Calculator

**A spherical capacitor is a capacitor whose plates are two concentric spheres with radii R**

The electrical capacity of a spherical capacitor is determined by the formula, where

Ï€ â€“ the number Pi (3.1415926535897932384626433832795â€¦)

Îµ

Îµ â€“ permittivity of dielectric

R

R

The SI unit of capacitance is the farad (F).

An electrical capacity of 1 Farad is a very large capacity, for example, a 1 Farad capacity has a sphere 13 times the radius of the Sun, therefore, sub-multiples of Farad units are mainly used.

_{1}and R_{2}, between which there is a dielectric whose permittivity is Îµ.The electrical capacity of a spherical capacitor is determined by the formula, where

Ï€ â€“ the number Pi (3.1415926535897932384626433832795â€¦)

Îµ

_{0}â€“ vacuum permittivity, Îµ_{0}= 8.85418781762039 Ã— 10^{-12}Îµ â€“ permittivity of dielectric

R

_{1}â€“ inner radiusR

_{2}â€“ outside radiusThe SI unit of capacitance is the farad (F).

An electrical capacity of 1 Farad is a very large capacity, for example, a 1 Farad capacity has a sphere 13 times the radius of the Sun, therefore, sub-multiples of Farad units are mainly used.

Radius R1 =

Radius R2 =

The SI unit of capacitance C