Mrs. Putri Arumsari submitted her paper on “Cost Estimation using Ministerial Regulation of Public Work No. 11/2013 in Construction Projects” in ICEED (International Conference on Eco Engineering Development) held in Yogyakarta, 14-15th November 2017.This paper investigated the difference of the total project cost estimation using the Ministerial Regulation of Public Work No. 11/2013 against the total project cost estimation calculated by the contractor. 2 projects were analyzed in this research.