GPA is your Grade Point Average. This number shows how you have performed in your courses on average on a typical scale of 1.0 to 4.0. Your GPA collects all the numbers/points corresponding to your letter grades from your courses (A=4, B=3, C=2, D=1, F=0) and averages them. A cumulative GPA is the sum of all the numbers/points from your grades in your courses divided by the sum of your degree credit hours for all the courses. A weighted GPA can change the range of your GPA to 0 to 5.0 and takes into account the difficulty of your class. AP, IB and Honors courses have a higher degree of difficulty and this is reflected in your weighted GPA. Ask your school counselor what type of GPA your school uses. Not all high schools have a GPA and some college admission offices will compute a GPA using their own internal scale.