What is Junior-Senior GPA?

A Junior-Senior GPA is a student's grade point average (GPA) calculated using only the grades earned during their junior and senior years of high school. It's often used in college applications to show a student's academic performance during their most recent and arguably most mature years of high school. Colleges may consider this GPA in addition to (or sometimes instead of) the cumulative GPA, which includes grades from all four years of high school.