Formula
![Overlap area (capacitance of a parallel-plate capacitor,relative static permittivity,distance) formula](http://www.wikicalculator.com/formula_image/Overlap-area-(capacitance-of-a-parallel-plate-capacitor-relative-static-permittivity-distance)-212.png)
A
area of overlap of the two plates
C
capacitance of a parallel-plate capacitor
d
separation distance between the plates
epsilonr
relative static permittivity (dielectric constant) of the material between the plates (1 for a vacuum)
epsilon0
electric constant