How to Calculate CGPA?

How to calculate CGPA for engineering students?

CGPA Calculation for Engineering Students

CGPA is defined as Cumulative Grade Points Average. GPA is the measure of average grade points of each semester. Its a average grade point obtained in all the semesters.

Formula for CGPA Calculation
CGPA = Σ ( Total Grades ) / Total Credits
Total Grades = Σ ( Grade * Credits )

Step 1: Assume a set of grade points to map with the subjects.

Grade	Grade Points
A+	4.7
A	4
B+	3.7
B	3
C+	2.7
C	2
D+	1.7
D	1

Step 2: Lets assume the Grade and Credits for the subjects till the fourth semester.

Semester	Subject	Credits	Grades
1	Mechanics	3	B+
2	Applied Physics	4	A
3	Aerodynamics	2	B
4	C Programming	1	D+

Step 3: To find the total grade points lets map the grade points of each subject in the given formula.
Total Grades = Σ (No of Credits x Grade points)
Total grades in Mechanics = 3 x 3.7 = 11.1
Total grades in Applied Physics = 4 x 4 = 16
Total grades in Aerodynamics = 2 x 3 = 6
Total grades in C programming = 1 x 1 = 1

Step 4: Find the total credit by adding the credits of all the subjects.
Total credits = 3 + 4 + 2 + 1 = 10
Total credits = 10

Step 5: Add the total grades of all subjects.
Total grades = 11.1 + 16 + 6 + 1 = 34.1
Total grades = 34.1

Step 6: To find the Cumulative Grade Points Average, substitute the obtained values in the CGPA formula.
CGPA = Σ( Total Grades ) / Total Credits
= 34.1 / 10
CGPA = 3.41

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