Correlation between physical activity and academic performance needs further investigation. Thus, this study aims to evaluate the association between those variables in university students. The data for this cross-sectional study were gathered from a convenience sample of students from Universitas Negeri Surabaya aged between 18 and 22 years. Socio-demographic characteristic (anthropometric, parental factor, health-related behaviour) was obtained using an online self-administered questionnaire. Physical activity levels were self-reported with the International Physical Activity Questionnaire (IPAQ), and academic performance was assessed using Grade Point Average (GPA) from the last final semester exam. The finding reveals that age (p = 0.072, r = 0.142), weight (p = 0.840, r = -0.026), height (p = 0.799, r = 0.244), and body mass index (p = 0.154, r = -0.251) do not significantly correlate with academic performance measured using GPA. The positive correlation is only found between physical activity and academic performance (p = 0.032, r = 0.450). Most of students in this study practiced physical activity in moderate level (600-3000 METs/min/week) and achieved good academic performance (n = 124, 64.6%). Further cross tabulation analysis using Chi Square shows that level of PA associates with academic performance in general (p = 0.044). This finding supports the previous literatures with evidence that regular physical activity may relate to academic performance in university students.