Abstract: Softwares have been developed for estimating the modulus of elasticity, E, of concrete. These softwares can predict several possible combinations of mix proportions of concrete components that can yield concrete of desired elasticity modulus, E. The determination of optimum cost of concrete based on a specified modulus of elasticity, entails several time wasting manual calculations of the total cost of all the mix proportions predicted for the specified modulus of elasticity by the software.