Prediction of power and resistance of the ship is one of the most important components of Ship Design. In the actual practice of naval hydrodynamic design are used wildly the mathematical models. Developments in the field of computers and programming have facilitated the work with very long and sophisticated mathematical models. At the initial stage of Ship Design is necessary to set out rapidly the resistance and power of ship. In literature there are models based mainly on regression equations that can be use for this purpose. These methods are manual and include a large number of variables and mathematical operations. For this reasons these methods are often tedious, requiring more time to apply and transmit errors step by step.

The purpose of this paper is to present the architecture of a computer code, written in Visual Basic, for prediction of resistance and power of the ship. In its current version the program uses the models of regression analysis Holptrop Mennen and Holtrop. However, to expand its field of application, the program is designed and planned to include other models. The program gives a detailed report regarding the components and the coefficients of resistance, power and propulsion factors. Program also gives a graphical representation of the total resistance and power depending on speed. In the paper, also we will present a simple example of entry and processing of data, as well as relevant reports generated by the program.