GPA or grade point average scale is an important measure as it signifies the long term performance of a student. This reflect the student’s ability to perform consistently good or bad. Generally master’s programs requires a minimum GPA scales of 3.0 and a minimum of 3.3 is required for a Ph.D. Grade points of different universities for a particular grade may vary from each other as Grade point average scale is not standardized, so it is hard to compare students of different universities using this scale.
Step 1: First calculate the Grade points for each subject depending on the grades obtained.
Step 2: Calculate the total no. of grade points obtained in all the subjects.
step 3: Calculate the total number of credit hours for all the subjects.
Step 4: Now Grade point average = (Total grade points)/ (total credit hours)
Here is an example which explains the calculation of GPA in detail:
Let the the subjects be Biology, Statistics, Geography, and Maths. And the grades earned by a student be B,A,C,B respectively for each subject. Calculate Grade point average of the student if the grade points for each grade A,B,C,D are 4 ,3, 2,1 respectively?
Grade points for Biology = credit hours`*` grade points = `3 *3` =`9`
Grade points for Statistics = credit hour`* ` grade points = `2*4` =`8`
Grade points for Geography = credit hours`*` grade points = `5*2` =`10`
Grade points for Maths = credit hours`* ` grade points = `1*3` =`3`
Total grade points = sum of grade points earned for each subject
Total credit hours = sum of credit hours of each subject
Total credit hours: 11
Total grade points :30
So Grade point average `=` total grade points earned )/(total credit hours
GPA of the student is `2.72`