What is a GPA of 2.5 on 4.0 scale?

A GPA (grade point average) of 2.5 on a 4.0 scale means that the student has earned an average grade of C+ for all of their courses taken. The 4.0 scale is the most common grading system used in secondary schools and colleges in the United States, where letter grades are assigned numerical values. In the 4.0 scale, the highest possible GPA is 4.0, which represents a straight-A average. An average GPA for most institutions is between 3.0 (B average) and 3.5 (B+ average).