Calculate the Capacitance of Two Spheres based on Radius

The calculator will calculate the Capacitance of 2 spheres having same radius and separated by distance based on given values of permittivity of free space, relative permittivity and radius.
Formula: C=8πεoεra ln2
Where, C = Capacitance of Two Spheres, a = Radius, εo = Permittivity of Free Space, εr = Relative Permittivity
Permittivity of Free Space (εo): 
Relative Permittivity (εr): 
Capacitance of Two Spheres: F