**Introduction :**

GPA or grade point average scale is an important measure as it signifies the long term performance of a student. This reflect the studentâ€™s ability to perform consistently good or bad. Generally masterâ€™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.

## Calculation of Grade Point Average 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:

## Example for Grade Point Average Scale:

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?

**Solution:**

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

= `9+8+10+3`

=`30`

Total credit hours = sum of credit hours of each subject

= `3+2+5+1`

=`11`

Subject | Credit hours | grade | Grade points |

Biology | 3 | B | 9 |

Statistics | 2 | A | 8 |

Geography | 5 | C | 10 |

maths | 1 | B | 3 |

Total credit hours: 11 | Total grade points :30 |

So Grade point average `=` total grade points earned )/(total credit hours

`=30/11`

` =2.72`

GPA of the student is `2.72`