Calculate the number of grade points you accumulated for each class on your transcript. For each class, multiply the number of credit hours by the points given per grade. Use this guide to determine the points per grade: A -- four points, B -- three points, C -- two points, D -- one point. Pass/no pass grades, withdrawals or incompletes do not count in the average. For example, an "A" for a three-credit hour class earns you 12 grade points.
Add up the number of grade points for every class on your transcript.
Add up the number of all the credit hours you attempted. Count all credit hours that were given a grade, regardless of the grade.
Divide the total number of grade points by the total number of credit hours to determine your cumulative GPA.