Modeling of single pile behavior is examined using AXIS 8 VM and PLAXIS 3D software packages, and the database of 20 pile load tests made in Hungary. Cone Penetration Test diagrams and the load-displacement curves are used to determine the soil mechanical parameters and the limits of pile resistances as input data for the numerical calculations. The goal of this work is to assess how precisely can be determined the load-settlement curve using available interface and sub-grade reaction models compared to the field load test results. This study is the first stage of improving the combined pile-raft foundation modeling.