Planetary gear systems are widely utilized for speed and power transmission across various sectors such as robotics, automotive, agricultural machinery, and conveyor systems, owing to their mechanical efficiency and versatility. These gear reducers typically consist of a central sun gear surrounded by satellite gears, collectively known as planet gears. Efficient operation and low error rates are paramount during the functioning of planetary gear systems. Therefore, in gear calculations, particular emphasis is placed on the profile shifting coefficient. Various mechanisms are employed in calculating this coefficient. Once an appropriate mechanism is selected, the integrated operation of the gear profile is observed. Of utmost importance here is ensuring that the gears operate smoothly with no instances of stress or undercutting. In this study, the profile shifting coefficients for a planetary gear system were determined using the KissSoft software. Through analysis of various parameters, the most suitable gear profile was selected, thereby mitigating potential errors during the manufacturing process.