The aim of this study was to demonstrate the change in weights of primary school students who could not attend school in the last year due to the COVID-19 pandemic. Students height and weight were recorded in March 2020 and in March 2021 by the researchers. The study was completed with the participation of 29 female and 29 male. The percentile values obtained in the first measurement ranged from 3.5 to 96.5, with a mean value of 46.94 ± 29.31 and a median value of 44.0. In the second measurement performed a year later, the percentile values ranged from 3.5 to 97, with a mean value of 58.29 ± 31.37 and a median value of 61.5. The percentile values of students significantly increased over the last 1 year (p = 0.000). The prevalence of childhood obesity may increase in the future, and children of this generation may face health problems more.