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How To Calculate GPA

The words grade, point and average give you a clue as to how you calculate your grade point average (GPA). First you have to determine your grade points, and then you take an average. Every letter grade has a numerical value assigned to it: A=4; B=3; C=2; D=1; F=0.

To calculate your grade points for a class you have taken, multiply the numerical value of your letter grade by the credit hours assigned to the course. Example: You took English 101, which is three credit hours, and you earned a C in the course (Remember, C=2). Just multiply 2 (for the C) x 3 (credit hours). That is, 2 x 3 = 6. So, for this class, you have six grade points.

Now calculate the grade points for each class using the example below:

Course Credits Grade Earned Grade Value Grade Points
ENG-101 3 C 2 3 x 2 = 6
CHM-110 4 A 4 4 x 4 = 16
PSY-201 3 B 3 3 x 3 = 9
Total Credits and Grade Points 10 31

Once you have figured out your grade points you can compute the average. To compute the grade point average:

  1. Total your grade points by adding the grade points from each class: 6+16+9=31
  2. Total the number of credits attempted: 3+4+3=10
  3. Divide the total grade points by the total number of credits: 31 divided by 10 = 3.1

The grade point average, or GPA, in this case is 3.1 for the semester. You have three different GPAs.

  1. Semester GPA - specific to all courses taken during the semester
  2. Cumulative GPA - includes all coursework completed at TTC
  3. Program GPA - specific to coursework applying directly toward your program of study.

Grading System

Letter Grade Numerical Scale
A 91-100
B 81-90
C 71-80
D 65-70
F Below 65

Use the following calculator to determine the grades you need in courses scheduled for your next semester. Your official grades and GPA can be accessed through TTC Express.

Cumulative GPA earned so far:
Total Credit Hours earned so far:
Credit Hour(s)
per course
Grade Quality points
Semester GPA     
Cumulative GPA  

This calculator is not official and does not consider identical, repeated TTC Courses. The TTC cumulative GPA only takes into account the higher grade for repeated courses