Weighted GPA is often used by high schools to better represent students’ academic accomplishments. It takes into account course difficulty, rather than providing the same letter grade to GPA conversion for every student. Usually, weighted GPA is measured on a scale of 0 to 5.0. An A in an AP class may translate into a 5.0 weighted GPA, while an A in a regular-level class will give you a 4.0 weighted GPA.