In the United States, 8th graders are usually 13-14 years old. This is the final year of middle school, which can be either the second, third, or fourth year of middle school depending on the school district. However, age and grade placement can vary depending on the country and school system. For example, in Finland, children aged 14-15 are usually in 8th grade. In Cameroon, 8th grade is the third year of middle school, while in Morocco, it is the second year of middle school. At Stamford American International School, 8th grade students are usually 13-14 years old. The table provided by EXPLO shows that 8th graders in the United States are typically 13 years old when they enter 8th grade and 14 years old when they leave.