Parallel Plate Capacitor Capacitance Calculator

This calculator computes the capacitance between two parallel plates.
The first calculator is metric, whereas the second is inches.


Equation:

C= K*Eo*A/D, where  Eo= 8.854x10-12

where:

K is the dielectric constant of the material,
A is the overlapping surface area of the plates,
d is the distance between the plates, and
C is capacitance

A (plate area) (mm2)
d (distance) (mm)
K (dielectric constant )

Capacitance (uF)
Capacitance (pF)

 

 

C= K*0.2248*A/d

A (plate area) (sq. in.)
d (distance) (inches)
K (dielectric constant )  

C (Capacitance) (pF)

 

Common Dielectric Constants

Vacuum 1
Air 1.00054
Teflon 2.1
Polyisobutylene 2.2
Mineral Oil 2.23
Polyethylene 2.25
Polystyrene 2.42.7
Kraft Paper 2.6
Table Salt 315
Polycarbonate 3.1
Paper 3.5
Silicon dioxide 3.7
FR4 4.2
Concrete 4.5
Glass 4.7 (3.710)
Halowax 5.2
Chlorinated Diphenyl 5.3
Ruby Mica 6.5-8.7
Diamond 5.510
Rubber 7
Aluminum Oxide 8.4
Glass 10
Graphite 1015
Silicon 11.68
Tantalum Pentoxide 28
Methanol 30
Niobium Oxide 40
Titanium Dioxide 80
Water 8880.155.334.5
(020100200 C)
Titanium Dioxide 86173
Strontium Titanate 310
Barium Titanate (Class1) 5-450
Barium Titanate (Class 2) 200-12000