<![CDATA[Physical fitness plays an important role in supporting students' cognitive and academic activities, especially in the field of sports. However, the relationship between Body Mass Index (BMI), physical fitness (VO₂ max), and academic achievement still needs to be studied further. This study aims to analyze the relationship between BMI and VO₂ max with the Cumulative Grade Point Average (GPA) of students of the Sports Science Study Program (IKOR) of the State University of Surabaya and compare the level of physical fitness between the 2023 and 2024 batches. This research method uses a comparative quantitative design with a cross-sectional approach, involving 187 students who were selected using the purposive sampling technique. BMI is calculated based on weight and height, while VO₂ max is measured using the Bleep Test. The data were analyzed using independent t-tests, Pearson correlation, and linear regression. The results showed that VO₂ max had a significant positive relationship with GPA (r = 0.852, p < 0.01), while BMI had a weaker positive correlation (r = 0.535, p < 0.05). There was a significant difference in VO₂ max between the 2023 and 2024 batches (p = 0.039), with the 2024 class having a higher fitness level. These findings confirm that physical fitness plays a role in academic achievement and supports the implementation of physical exercise programs in universities. Further research is suggested to explore the psychological and environmental factors that can influence these relationships. Keywords: Physical fitness, Body Mass Index, VO₂ max, Academic achievement]]>
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