By elucidating the intricate connection between polystyrene thin film thickness, molecular weight, and solution concentration, this research not only advances our understanding of thin film physics but also provides a platform for informed materials design. The integration of empirical exploration with a cutting-edge computational model ushers in a new era of predictive capabilities for thin film engineering. This paper bridges the gap between scientific inquiry and practical applications, fostering progress towards precisely engineered thin film coatings for a myriad of industries.