The impact of free time management and leisure satisfaction on quality of life is distinct, however, the role of satisfaction in enhancing quality of life through free time management remains uncertain. Hence, the objective of this research is to explore how leisure satisfaction acts as a mediator between free time management and the levels of quality of life among university students. Additionally, this study aims to analyse these concepts in relation to gender, age and the number of days of activity participation. Within this particular framework, a total of 213 university students willingly participated in the survey, which included the administration of the “Free Time Management Scale,” “Leisure Satisfaction Scale,” and “Quality of Life Scale.” The analyses employed the Independent T-Test, Pearson Correlation, and Linear Regression methods. The mediating effect was analysed using Structural Equation Modelling. The study found significant relationships between gender, free time management, and life quality. There was a significant relationship between free time management, leisure satisfaction, and quality of life (p < 0.05). Leisure satisfaction partially mediated the quality of life-free time management relationship. As age and physical activity grow, males have a higher standard of living, and time allocation and quality of life improve. Furthermore, it was found that students who effectively managed their time experienced an enhanced quality of life, as evidenced by their increased satisfaction with leisure activities. Notably, the level of satisfaction with well-managed time was identified as a crucial factor in this association.