In this paper in an elegant way will be present the formulas of the Dimensionless Universe. All these equations are simple,elegant and symmetrical in a great physical meaning. These equations are applicable for all energy scales. We will propose the Dimensionless unification of the fundamental interactions and the Dimensionless unification of atomic physics with cosmology. We find the formulas for the cosmological constant and we will prove that the shape of the Universe is Poincaré dodecahedral space. From the dimensionless unification of the fundamental interactions will propose a possible solution for the density parameter of baryonic matter,dark matter and dark energy.