This paper presents an analysis of a circular water tank using the finite element method (FEM). The tank's wall is examined for parameters such as moment and hoop tension at various levels, considering the effects of hydrostatic and soil pressures, along with the use of stiffeners. Additionally, the wall of a rectangular water tank is analyzed for vertical and horizontal moments at different levels, subjected to similar pressures. The analysis is performed using the FEM software STAAD-Pro V8i. For both tank types, the wall is modeled with its bottom fixed and top free. The wall is divided into several 4-node rectangular (quadrilateral) plate elements, and vertical beam elements are added up to the full height of the tank. The tank is then subjected to a triangularly varying hydrostatic load and soil load. Various types of stiffeners are incorporated into the tank design, and the results are compared with conventional design methods based on moment values.