In the context of grades, "P" stands for "Pass". In some grading systems, such as those used in colleges and universities, grades of A, B, C, D, and P are passing grades, while grades of F and U are failing grades. Pass grades carry academic credit but are not included within GPA calculations. In some schools, AP (Advanced Placement) classes are treated differently when calculating a students grade point average (GPA). Rather than the traditional 4.0 scale, AP classes are weighted on a 5.0 scale, where an A is equivalent to 5.0 instead of 4.0, and a B is equal to 4.0 instead of 3.0. This means students who take AP courses can end up with a GPA higher than 4.0, which can set them apart when applying to colleges.