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Capacitance of Capacitor. Online Calculator.

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 ε0, permittivity of the dielectric e and the area S of the capacitor plate, divided by the distance d between the plates where,
ε0 = 8.85418781762039 × 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.
Permittivity ε =
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 R1 and the outer one with the radius R2. Between the plates there is a dielectric whose permittivity is ε.

The electrical capacity of a cylindrical capacitor is determined by the formula, where
π – the number Pi (3.1415926535897932384626433832795…)
ε0 – vacuum permittivity, ε0 = 8.85418781762039 × 10-12
ε – permittivity of dielectric
l – length of the cylinder
ln – natural logarithm

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.
Permittivity ε =
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 R1 and R2, between which there is a dielectric whose permittivity is ε.

The electrical capacity of a spherical capacitor is determined by the formula, where
π – the number Pi (3.1415926535897932384626433832795…)
ε0 – vacuum permittivity, ε0 = 8.85418781762039 × 10-12
ε – permittivity of dielectric