The Fourier integral transformation method for determination of coupling capacitances in the selected conductive paths' system is presented in this paper. It is a continuation of investigations [1], which concerned the identification problems of capacitive couplings in hybrid microcircuits. The capacitance calculation is based on its definition. Electrical potential presented in form of Fourier integrals fulfills the Laplace's equation. Resulting from here the equation system of electric charge distribution is solved numerically using the collocation method. On this basis the capacitance between conducting paths are calculated and partially experimentally verified