Obtain the grades for all of your classes and assign the proper numerical score for each grade. The grading scale is typically: A, B, C, D and F. The numerical scale is normally 4, 3, 2, 1 and 0.
Multiply the numerical grade value by the credit hours the class is worth. To determine that particular classes quality points. Repeat this step for all of your classes.
Add all of the classes quality points and the total credit hours.
Divide the total number of quality points by the total credit hours to obtain your QPA.