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Calculating GPA

Every letter grade a student receives is worth a specified number of grade points depending on the number of credits the class was taken for. The GPA is the sum of the grade points earned divided by the total number of credits taken. To come up with the number of points, you must first convert the letter grade into numbers. The following chart displays the conversion of letter grades into numbers that can be used to figure out GPA.


Letter Grade Number Equivalent
A 4.0
A- 3.667
B+ 3.333
B 3.0
B- 2.667
C+ 2.333
C 2.0
C- 1.667
D+ 1.333
D 1.0
F 0.0


Example of GPA calculation

Spring 2001 Enrollment for Student XXXXX

Psy 1001, 4cr, Grade Earned: A-

Pol 1005, 3cr, Grade Earned: C+

Span 1003, 3cr, Grade Earned: B


  • First convert the letter grade into the number equivalent. A- = 3.67, C+ = 2.33, and B = 3.0.
  • Next multiply the number of credits by the letter grades number equivalent. So for Psy 1001, you would take 3.67 x 4 = 14.68 grade points. For Pol 1005, 2.33 x 3 = 6.99, and Span 1003 3.0 x 3 = 9 for a total of 30.67 grade points.
  • Now add up the number of grade points and divide that by the total number of credits (in the above example 10 credits is the total number). So 30.67 / 10 = 3.067, the cumulative GPA for this student (assuming this is his/her first term at the U of M.