This paper develops a quick and effective method for determining the maximum storage capacity of a parcel of land designated for a self-service parking facility. Because of scattered and inadequate information on design guidelines, this study was authorized. The basic design unit in this analysis is the parking block, which comprises dual-stall units. The elements that constitute the block are analytically correlated. Two most widely used parking configurations are proposed for parking capacity analyses. The varying data on dimensional elements in a set of mathematical functions are entered into a developed computer program, and a series of derived graphs and application procedures that are necessary for solving a variety of parking capacity design problems is presented.