# How to Calculate GPA and CGPA in Nigeria

Last updated on May 31, 2021 by The Counselor

A lot of students do not know what GPA and CGPA really mean and how it could ensure their success or doom. If you want to stay on top carryover or backlogs; I mean you want to excel in your studies and graduate with a good grade, then knowing how to calculate GPA and CGPA in school is a must.

I noticed a lot of Nigerian students visit this page to learn of how to calculate GPA and CGPA and for this reason, I have updated this page specifically for Nigerian student. If you’re not a Nigerian student, you should visit how to calculate semester GPA for any school (international students)

What is GPA and CGPA?

GPA simply means Grade Point Average. That is a measure of a student’s academic achievement at a college or university; calculated by dividing the total number of acquired Grade Points by the total number of Course Unit received. CGPA means Cumulative Grade Point Average. Grade letter may differ. While some higher institutions make use of ABCDEF, others prefer ABCDF. Polytechnics make do of AB BC in their grading. I will make use of ABCDF on this post.

### Why is GPA important

Your GPA, or Grade Point Average, is a number that indicates how well or how high you scored in your courses on average. GPA scale between 1.0 and 4.0 or 5.0) during your studies and shows whether your grades have been high or low overall in your classes. This number is then used to assess whether you meet the standards and expectations set by the degree programme or university.

• A good GPA makes you eligible to sit for all top colleges throughout the world.
• It puts you on the top of your VC’s list of good students.
• It increases your chances of getting better Grants and Scholarship.
• You graduate with good honours.
• Getting a good GPA is not easy, you would have learned a lot during the process.

### Difference between GPA and CGPA

To understand the differences between GPA and overall CGPA, you must first know that they both refer to the average grades of a student. The difference is that the GPA covers shorter periods, like a term or a semester. While CGPA refers to the average grades obtained by a student throughout his entire academic experience. This means it includes grades from all terms and semesters. CGPA is used to determine your Class of Honor. Eg First Class, Second class lower etc

### GPA percentage and conversion scales

The percentage needed in any given course to achieve a certain grade and the assignment of GPA point values varies from school to school, and sometimes between instructors within a given school.  In Nigeria, according to NUC, the standard grading scale in Nigeria is 5.00. I am also aware that some universities still makes use of a 4.00 grading scale.

Due to popular request, I am going to make use of a 5.00 GPA scale to teach you how to calculate GPA and CGPA because it is the most widely used grading scale in Nigeria universities. If your school uses 4.00, the calculation is the same. You can learn more about 4.00 GPA calculation here. If you’re not sure of your school’s GPA scale, take a bold step towards your course advisor and ask for the school GPA grading scale.

## Classification of degrees

• The cumulative GP for First Class Honours is 3.5 – 4.00
• The cumulative GP for Second Class Honours (Upper Division) is 3.0 – 3.49
• The cumulative GP for Second Class Honours (Lower Division) is 2.0 – 2.99
• The cumulative GP for Third Class Honours is 1.0 – 1.99

• CU — Represent Course Unit (also means credit hour)
• EXS — Represent Examination score
• GD — Represent Grading Letter (A, B, C, D, E, F)
• GP — Represent Grading Point (5, 4, 3, 2, 1,0)
• QP — Represent Quality Point (GP multiply by CU)

This is the official grading scale in Nigeria and that is what I will use to teach you how to calculate GPA and CGPA.

 Percentage Grade Letter Grade Point 70 – 100 A 5 60 – 69 B 4 50 – 59 C 3 45 – 49 D 2 40 – 44 E 1 0 -39 F 0

This means if your exam score for a particular course falls between 51 – 59, you will be assigned C in your result. And remember I said the grading may differ but the calculation is same – so check with your coordinator or course advisor for the right grade… Shey, you get?

Example
Department: Library and Information Science

 COURSE NAME CU EXS GD GP QP LIS 101 2 85 A 5 10 LIS 102 3 69 C 3 9 LIS 103 2 75 A 5 10 LIS 104 2 51 C 3 6

To calculate your GPA, you must sum two important columns in 100 level First Semester Table:

• Course Unit (CU)  for 100 level first Semester 2 + 3 + 2 + 2 = 9
• Quality Point (QP) for 100 level first Semester 10 + 9 + 10 + 6 = 35
• Remember we got the quality point by multiplying GP by CU
• To know your GPA, Divide Quality Point by Course Unit. That is, 35 / 9 = 3.888 (Your First Semester GPA)

Alert!!! You cannot get CGPA because we still have one more semester to go

Second Semester 100 level GPA
Department: Library and Information Science

 COURSE CU EXS GD GP QP LIS 111 3 85 A 5 15 LIS 112 3 69 C 3 9 LIS 113 2 75 A 5 10 LIS 114 3 51 C 3 9
• Course Unit  for 100 level Second Semester 3 + 3 + 2 + 3 = 11
• Quality Point for 100 level Second Semester 15 + 9 + 10 + 9 = 43
• To know your GPA, Divide Quality Point by Course Unit 43 / 11 = 3.909 (Your Second Semester GPA)

————- To Know your 100 level C.G.P.A ————

Remember, Cumulative means – Increasing by successive addition

• Your total Course Unit for 100 first semester and the second semester 11 + 9 = 20
• Your total Quality Unit for 100 first semester and the second semester 35 + 43 = 78
• Divide your Cumulative Quality point by Cumulative Course Unit.
• That is,  78 / 20 = 3.9 (100 level CGPA)

Hope you understand?

Let move to 200 level First Semester
Department: Library and Information Science

 COURSE CU EXS GD GP QP LIS 101 2 85 A 5 10 LIS 102 2 69 B 4 8 LIS 103 2 75 A 5 10 LIS 102 2 51 C 3 6
• Course Unit  for 200 level first Semester 2 + 2 + 2 + 2 = 8
• Quality Point for 200 level first Semester 10 + 8 + 10 + 6 = 34
• To know your GPA, Divide Quality Point by Course Unit. That is, 34 / 8 = 4.25 (First Semester GPA)

200 level Second Semester
Department: Library and Information Science

 COURSE CU EXS GD GP QP LIS 111 3 85 A 5 15 LIS 112 3 69 C 3 9 LIS 113 2 75 A 5 10 LIS 114 3 51 B 4 12
• Course Unit  for 200 level Second Semester 3 + 3 + 2 + 3= 11
• Quality Point for 200 level Second Semester 15 + 9 + 10 + 9 = 46
• To know your GPA, Divide Quality Point by Course Unit 43 / 11 = 4.18 (Your Second Semester GPA)

————- To Know your 200 level C.G.P.A ————

Remember, Cumulative means – Increasing by successive addition

• Your total Course Unit for 200 first semester and the second semester 11 + 8 = 19
• Your total Quality Unit for 200 first semester and the second semester 34 + 46 = 80
• Divide your Cumulative Quality point by Cumulative Course Unit.  That is,  80 / 19 = 4.21 (200 level CGPA)

Now listen, when you get your CPGA for 200 level, it is imperative you know your overall performance since 100 to 200 level.

• Add up all the Course Unit from 100 and 200 level (20 +  19 = 39)
• Add up all the Quality Point from 100 and 200 level (78 + 80 = 158)
• Your academic performance so far from 100 to 200 level is 4.05

How?

158 / 39 = 4.05 (C.P.G.A of 100 and 200 level)
Use this process for 300 to 400 or 500 level your final year.

Please note – Your carryover courses don’t have a special GPA or CGPA calculation. If you write your 100 level first semester carryover in 300 level first semester, you should include the score and grade among the 300 level scores and calculate as usual.

If you are not good with calculation, you can use Fatherprada’s GPA and CGPA Calculator

…and I wish you well