UNIBEN Admission Update

How To Calculate CGPA in Nigerian Universities (With Example)

Last updated on May 1st, 2024 at 09:52 am


To calculate your GPA for the first semester, multiply the grade point obtained in each course by the number of units assigned to the specific course, the sum of which is divided by the total number of credit units taken for a semester.

For example, if your GPA after adding points, you arrive at 101 as total points while the total unit is 24, which is 101 divided by 24, which gives you 4.20.

This guide will show you how to calculate your Grade Point Average (GPA) in a Nigerian university for each of the semesters and how to arrive at a Cumulative Grade Point Average (CGPA). GPA and CGPA is also applied in Nigerian Polytechnics using different grade points.


Over the years fresh students in tertiary institutions in Nigeria want to know how their grades are being calculated and arrived at by the authority.

Step-by-Step CGPA Calculation Guide for Nigerian Universities

Whether you are an undergraduate at the University in Nigeria, you should be able to compute your own GPA and CGPA right from your 100 level.

This article explores the meaning of GPA and calculating your overall CGPA, Total Point, and an illustration of calculating your grades in the University.

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I will break down these jargon for easy understanding, before using an illustration which you can use to arrive at your own grade as an undergraduate in any of Nigeria’s tertiary institutions.

Grade Point

The grade point is the product (course unit) and the corresponding point of the letter grade. It is derived from the actual percentage of raw score for a given course. The raw score is then converted into a letter grade and a grade point.

Grading Point for Nigerian University

  • 5
  • 4
  • 3
  • 2
  • 1
  • 0

Grade Point Average

GPA for short, the Grade Point Average is the average of grade you earned in the courses you took during a semester.

The GPA is arrived at by multiplying the grade point obtained in each course by the number of units assigned to the specific course, the sum of which is divided by the total number of credit unit taken for a semester.

GPA=Total Point obtained over the total number units or registered courses.

Grade Point Average for Nigerian Universities

Score PercentLetter of GradesGrade Point
70 – 100A5
60 – 69B4
55 – 59C3
50 – 54D2
45 49E1
0 – 44F0

Cumulative Grade Point Average

CGPA for short, it is the updated mean of the Grade Point you earned in a programme of study. The CGPA is an indication of your overall performance at all points in your course of study at the end of a session.

CGPA = Sum of Total Grade Points obtained OVER the Total number of units for all courses registered by you (the student).

The CGPA is used to arrive at your class of degree.

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Class of Degree in the University in Nigeria

  • First Class
  • Second Class Upper
  • Second Class Lower
  • Third Class
  • Fail

CGPA for Universities in Nigeria

CGPAClass of Degree
4.50 – 5.00First Class
3.50 – 4.49Second Class Upper
2.40 – 3.49Second Class Lower
1.50 – 2.39Third Class
1.00 – 1.49Fail (Certificate of Attendance)

Total Point

TP for short, the Total Point is arrived at by multiplying your grade point by the number of the unit allocated for a particular course.

How To Calculate Your GPA In Nigerian University

In this section, I will show you how to calculate your class grade in the first and second semester using the grading system: 70- 100 and 0 – 44:

Calculating the first semester GPA

Let’s assume your course of study is Business Administration, offering the following courses and the unit of each course:

  • Introduction to Business Management I (BUS 101): 3 Unit
  • Uses of English I (GNS 101): 2 Units
  • Introduction to Financial Accounting I (BUS 103): 3 Unit
  • Small Scale Management I (BUS 105): 3 Unit
  • Nigerian Language – Yoruba I – (GNS 103): 2 Unit
  • Entrepreneurship Skill I (BUS 107): 3 Unit
  • Nigeria Business Environment I (BUS 111): 3 Unit
  • Business Analysis I (BUS 113): 3 Unit
  • Introduction to trading and profit account I (ACC 101): 2 Unit


Your scores are as follows after the end of the First Semester Examination:

Course CodeScores/Letter of GradeGrade PointUnitsTotal Points
ACC 10164: B428
BUS 11379: A5315
GNS 10367: B428
BUS 11154: C339
BUS 10769: B4312
GNS 10181: A5210
BUS 10369: B4312
BUS 10566: B4312
BUS 10177: A5315

Sum of Total Points:  101

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Therefore, GPA= 8+15+8+9+12+10+12+12+15  DIVIDED by 24 (TOTAL UNIT)

101 divided by 24 = 4.2 (Second Class Upper in the 1st semester)

Calculating the second semester GPA

Let’s use the following list of courses for 2nd semester:

  • Use of English II (GNS 102): 2 unit
  • Nigerian Language – Yoruba II (GNS 104): 2 unit
  • Practical Business Management (BUS 102): 3 unit
  • Applied Financial Accounting (BUS 104): 3 unit
  • Analytical small scale management (BUS 106): 3 unit
  • Entrepreuship Skill II (BUS 108): 3 Unit
  • Nigerian Business Environment II ( BUS 112): 3 unit
  • Business analysis II (BUS 114): 3 unit
  • Applied trading and profit account (ACC 102): 3 unit


Course codeScores/Letter of GradeGrade PointUnitsTotal points
GNS 10263: B428
BUS 11456: C339
GNS 10477: A5210
BUS 11291: A5315
BUS 10651: D236
ACC 10255: C339
BUS 10259: C339
BUS 10467: B4312
BUS 10853: C339

Sum of Total Points: 87


So, to know your GPA for the second semester, you are going to add the total points altogether, that is: 8+9+10+15+6+9+9+12+9 DIVIDED by 25 (TOTAL UNIT)

Therefore 87 divided by 25 =3.48  (that’s your GPA for the Second Semester).

CGPA Calculation for the Session

To calculate your CGPA for the session:

add total points in the first semester and total points in the second semester (101+87)=188

add no. of units in 1st and 2nd semester (24+25)=49

188÷49=3.84 on 5.0 scale

This means you maintained Second Class Upper for the session.

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