How To Calculate GPA And CGPA In Nigeria

Last Updated on May 6, 2020 by Oyeniyi Michael Barry

Searching for how to calculate your GPA and CGPA In Nigerian Universities? See ways you can calculate your CGPA easily here.

It is one heart breaking thing to discover that Students in 300 levels and above do not know how GPA and CGPA is being calculated.

Is it actually important to know how to calculate GP, GPA and CGPA?

If you really want to stay at the top and be outstanding, I mean having to excel in your studies and graduate with a good grade, then knowing how to calculate the GPA and CGPA in the higher Institution is a must.

But before then, for those who don’t Know what GP, GPA and CGPA are, or those who don’t know the full meaning of these acronyms.

What is GP, GPA and CGPA?

For the sake of those that don’t know what they are, I will quickly run through their basic meanings.

Grade Point (GP): This is the product of the point weighing and the credit hour(s)/unit for any given course.

Grade Point Average (GPA): It is the sum of grade point divided by the sum of credit hour/course unit which is the average performance for a semester.

Here we can say GPA is the measure of students academic performance for a particular academic section (semester).

Cumulative Grade point Average (CGPA): This is the average, GPA for the two semesters (called a full academic session).

Differences Between GPA and CGPA.

Of course they are both measures of average grade of a student but they exist differences between them.

The difference between GPA and CGPA is that;  GPA is used for shorter periods, like a term or a semester. While CGPA on the other hand is the average grades used for the longer periods or the cumulative/final average for an entire academic experience.

Grade Score Remarks.

Total score(100%)GradeGrade Point(GP)
100 – 70A5.00
69 – 60B4.00
59 – 50C3.00
49 – 45D2.00
44 – 0F0.00

How To Calculate GPA And CGPA.

Let’s take for instance you are a fresher and just started you 100L in mechanical engineering in a Nigerian University. At the end of the first semester your grades were as follows:

Sample 1st semester 100 level GPA


Summarily, the student did well in the first semester of study.
→ The Total Course Unit  for 100 level first Semester is 3 + 1 + 3 + 2 + 4 + 3 + 3 = 19

→ Total Quality Point for 100 level first Semester( Gotten by multiplying GP by CU): 12 + 3 + 10 + 15 + 20 + 12 + 15 = 87 ₹
→ The GPA of the 100L year 1 is gotten by dividing the total Quality Point by the total course unit. Now, it should be 87/19 which gives: 4.58  —  to 2 significant figures. That is your first semester GPA.

We are done with calculations related to the first semester. Remember, you can’t get a CGPA without going through two or more semesters. Let’s move on to the second semester of the same level.

Sample 2nd semester 100 level GPA


→ Now, the total course unit  for 100 level second semester is 3 +1 + 3 + 2 + 4 + 3 + 2 = 18
→ The total quality point for 100 level second semester is 15 + 2 + 15 + 10 + 16 + 9 + 10 = 77.
→ The second semester GPA = 77/18 = 4.38.

Now your total year one CGPA = total 1st semester and 2nd semester 100L quality point divided by the total credit units.

Let’s check,

Total credit unit first semester = 19; that of second semester = 18; TT= 37.

Total quality point of first semester = 87; that of second semester = 77; TT= 164.

Now your 100L CGPA = 164/37 = 4.43

What if you’ve entered into year two, how is it done? Let’s do one more!

Sample 1st semester 200 level GPA


→ The total course unit for 200 level first Semester is 3 +1 + 3 + 2 + 3 + 3 + 3 = 18
→ The total quality point for 200 level first semester is 15 + 0 + 15 + 10 + 15 + 15 + 15 = 85.
→ The 200L first semester GPA = 85/18 = 4.72

Now your CGPA on completion of 100L and 200L first semester = total 100L & 200L 1st semester quality point divided by the total credit units.

Total credit unit first semester = 19; that of second semester = 18; that of 200L 1st semester = 18; TT= 55.

Total quality point of first semester = 87; that of second semester = 77; that of 200L second semester = 85; TT= 249.

Now your CGPA = 249/55 = 4.53

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