Capacitance is the capacity of the device to store electrical charge. Any material that can be electrically charged possess self capacitance. A type of capacitor with thin and hollow spherical plate conductors is called as a Spherical capacitor. Here is the Capacitance of a sphere formula, that guides you to calculate the Capacitance of a spherical capacitor based on radius. Relative permittivity and radius are the inputs required to perform calculation.