Volkswagen, a German automaker, is the largest manufacturer of cars known for its iconic vehicles - Beetle, Jetta, Passat, etc. This multinational group was looking to provide an easy solution for their customers to calculate their monthly car expenses for all models they have till now. For this, we first gathered all the parameters for the calculation and after understanding the complete vision and model for the calculator, we developed an advanced and user-friendly calculator which takes inputs from the visitors in an interactive way and provides an output based on their selection and inputs.