The resistivity of liquid less‐simple metals is calculated using Ziman’s theory. The effective electron‐ion interaction pseudopotential constructed from energy‐wave number characteristics, which is obtained through first principles, has been used in the present study. The self‐consistent electrical resistivity is evaluated by considering blurring of the Fermi surface due to finite mean free path of electrons. Our results are well compared with experiments and other theoretical findings. It is pointed out that the presently generated local pseudopotentials not only suffice for electrical properties, but has an additional advantage of making calculations simple.