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All About Credit Hour and Grade Point Average (GPA, CGPA, SGPA)


*What is a Credit Hour?

A credit hour is a way of measuring how much credit a student receives for attending a course which corresponds to the hours per week spent in that course. Unlike many traditional high school courses that require students to attend class every day, college courses may only meet two or three times per week. Every hour that a student spends in the class typically corresponds to a credit hour.

For example,

if a student enrolls in a class that meets for one hour on Monday, Wednesday, and Friday, that course would be worth three credit hours, which is common of many college courses.


 The certificate program requires a minimum of 24 credit hours of undergraduate-level course work.

 A student should complete 120 college credits to earn a bachelors degree.

 Most Masters Degree require about 30 credit hours with more complex and in-depth programs increasing this to as much as 40.


Course Credit Hour Calculator

​Class

​Grade

​Grade Weight/ Point Equivalent

Credit

Grade Point (Grade weight x Credit)

​Math

B+

​3.30

​3

​9.90

​English

​C

​2.00

3

​6.00

​Science

​A

​4.00

2

8.00

Arts

A-

​3.70

3

11.10

​Total


35.00


 

*What is GPA?

Grade-Point-Average (GPA) Calculation or Averaging of Grades The grade-point-average is the arithmetic mean of the grade points earned for all credits taken at the University of Arizona for University Credit or by Special Examination for Grade, where regular grades are awarded. Ordinarily cumulative GPAs are calculated using only the courses at the career level of the student. For example, the undergraduate GPA is based on undergraduate courses only (see Graduate Credit for Seniors, Grade Replacement Opportunity, and Second Start, Academic Renewal for exceptions).


Only regular grades (A, B, C, D, E) are included in the calculation of the grade-point-average. Grade points are assigned to each regular grade as follows:


GRADE: GRADE POINTS:

A 4 points

B 3 points

C 2 points

D 1 points

E 0 points


To calculate the GPA, the unit value for each course in which a student receives one of the above grades is multiplied by the number of grade points for that grade. The sum of these products is then divided by the sum of the units.


For example, to calculate the cumulative GPA for these completed courses:

​SUBJECTS

GRADES

ASSIGNMENT 101 (5 units) Grade

​B

THEORY 101 (6 units) Grade

A

PRACTICAL 101 (4 units) Grade

B

VIVA 110 (4 units) Grade

C


Multiply the units represented by each grade by the number of points for that grade:


GRADE: UNITS x POINTS = GRADE POINTS(QUALITY POINTS):

A 6 x 4 = 24 grade points

B 9 x 3 = 27 grade points

C 4 x 2 = 8 grade points

Total: 19 units x 59 grade points

The cumulative GPA is the sum of the grade points divided by the sum of the units.

In this case: 59/19 = 3.105

 

*What is CGPA?

The full form of CGPA is Cumulative Grade Point Average. For schools and colleges, CGPA is used to measure the overall academic achievement of a student by awarding A, B, C, D or F grades. CGPA is a calculation of the average grade point obtained in all subjects except in additional subjects as per the study scheme.


Let us now find out how to calculate CGPA? To calculate CGPA out of ten, students may divide their percentage by 9.5, and the result obtained would be their CGPA. However, students can calculate CGPA by dividing their total score of grade points for all subjects throughout their semesters by the total number of credit hours attended.


Most universities follow this particular grade system. The table will briefly explain how to calculate CGPA in Engineering.

​Grade (Points)

Marks

S - 10 points

​Greater Than 91

​A - 9 points

​81-90

​B - 8 points

​71-80

​C - 7 points

​61-70

​D - 6 points

57-60

​E - 5 points

​50-56

​F - 0 points

​Less Than 50


University Grade System


Consider a student who got the following grade in five subjects

  • Subject A - 9

  • Subject B - 7

  • Subject C - 8

  • Subject D - 8

  • Subject E - 7

Note: Considering the total marks for each subject as 10.

Step 1: Add the grade points of all the 5 subjects

  • 9+7+8+8+7 = 39

Step 2: Divide the total by no of subjects, i.e., 5

  • 39/5 = 7.8

The CGPA of the candidate is 7.8

 

*What is SGPA?

SGPA is short for Semester Grade Point Average, a score given to students based on their performance in their course work at the end of each academic session, such as a school term or an academic year.

The SGPA is calculated as the weighted average of the sum of all marks obtained by a student during a semester in all subjects.


How to calculate SGPA?

Consider the following example to understand this method-

Say the credits score for each of your selected subjects are:

Subject 1= 2

Subject 2= 3

Subject 3= 3


Now suppose you got the following grades in each of these subjects:

Subject 1= 8

Subject 2= 7.8

Subject 3= 9


Next, you need to multiply each of the grades by their respective subject credits:

Subject 1= 2 x 8 = 16

Subject 2= 3 x 7.8 = 23.4

Subject 3= 3 x 9 = 27


Then you need to get the sum of all the products:

16 + 23.4 + 27 = 64.4. This is your total score.


Then add all the credits from the individual subjects:

(Subject 1 + Subject 2 + Subject 3) i.e. 2 + 3 + 3 = 8


Finally, divide the total score you get by the total subject credits:

64.4 / 8 = 8.3


Therefore, your SGPA is 8.3.

(SGPA x 10) – 7.5 = Percentage

(8.3 × 10) – 7.5 = 75.5%



 

*How to Convert SGPA to CGPA?

All you have to do is find the sum of all the SGPAs you have scored throughout the academic year, and then divide it by the total number of semesters. So basically,

CGPA = (SGPA of all semesters in a particular year / total number of semesters)

For example, if you get 9 and 9 SGPA in two semesters, you would need to divide the total by 2:

=(9 + 9)/2

=18/2

So, your CGPA is 9.



 

Merits and Demerits of CGPA Conversion

Now that students know how to calculate the CGPA and derive the percentage let us not forget there are some merits and demerits associated with the same.

Merits

  • The CGPA reduces the tension and pressure of scoring high marks in the exam as the actual marks are not mentioned in the results/ report cards.

  • Additionally, students get an opportunity to weigh their strengths and weaknesses. Further, they can work on improving it.

Demerits

  • Students often tend to underperform themselves as they know the actual marks will be converted into the grading system.

  • The students' performance is hampered, and the CGPA does not reflect the actual performance.

 

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