Find out your grades from your professors or by viewing your semester report card.
Find out how your school assigns points for plus and minus grades. A common point system is: A = 4; A- = 3.67; B+ = 3.33; B = 3; B- = 2.67; C+ = 2; C- = 1.67; D+ = 1.33; D = 1; D- = .67; and F = 0.
Add up the numbers that correspond with the grades you received. This will help you find the total for all of your grades. Divide the number by the number of grades on your list. This is your GPA.