To determine the total electrical capacitance in an electronic circuit the following formulas can be used depends on how the circuit is connected.

In a series connection circuit the relationship between the total electrical capacitance, voltage and the total electrical charge is given by:

V = Q/C = Q/C1 + Q/C2 + ... + Q/Cn

thus

1/C = 1/C1 + 1/C2 + ... + 1/Cn

In a parallel connection circuit the total electrical capacitance is given by:

C = C1 + C2 + ... + Cn

and for the total electrical charge:

Q = Q1 + Q2 + ... + Qn