Find the number equivalent of each letter grade, for example, A=4; B=3; C=2; D=1; and F=0. Depending on the school, the number equivalent of a letter grade may vary.
Multiply the number equivalent of the letter grade by the number of credits received for the class to get the grade point. Each class needs to be calculated separately.
Add the totals for each class to get the total number of grade points.
Divide the total number of grade points by the total number of credits received to find your GPA.