To calculate your GPA, you take the total number of "grade points" received and divide that number by the total number of units completed (not counting W, I, P or NP grades). The formula to calculate your total grade points is: An "A" grade equals 4 grade points, "B" equals 3, "C" equals 2, "D" equals 1, and an "F" grade equals 0 grade points. Whatever grade you got for the class, you times the grade points for that grade by the number of the units the class was. For example, if you took only one 4-unit class and got a B, you would times 3 (which are the grade points for a B) by 4 (the units of the class), and that equals 12. Then you divide the total grade points received by the total number of units completed. In this example, 12 divided by 4 = 3. So your grade point average would be a 3.0.