Geometric models are a proven aid for calculating the CapEx needed for a network deployment and used widely by telecommunication network operators for their access networks. However, for the economic viability an accurate estimation of the delivered bandwidth is important as well. In this paper a method is described to calculate a bandwidth profile for an area under investigation, given a single topology and using the geometric representation. Next to this single topology result, a method to estimate the bandwidth profile for a geometric model of a multi-layer network topology is presented.