Learn how the NOUN CGPA grading system works in 2025. Use our simple GPA calculator, understand the score ranges, and see how to maintain a high CGPA at the National Open University of Nigeria.
If you’re a student of the National Open University of Nigeria (NOUN), understanding the Cumulative Grade Point Average (CGPA) system is crucial for tracking your academic performance.
Your CGPA determines your class of degree, eligibility for honours, and sometimes your chances for postgraduate studies or job applications.
In this 2025 guide, you’ll learn:
- The NOUN grading scale.
- How to calculate GPA & CGPA step-by-step.
- The formula for accurate computation.
- A ready-to-use NOUN CGPA calculator.
- Tips to maintain or improve your CGPA.
NOUN CGPA Grading System 2025
The grading system at NOUN follows the National Universities Commission (NUC) guidelines. This system helps determine your academic performance and final class of degree.
| Score (%) | Grade | Grade Point (GP) | Class of Degree |
|---|---|---|---|
| 70 – 100 | A | 5.0 | First Class |
| 60 – 69 | B | 4.0 | Second Class Upper |
| 50 – 59 | C | 3.0 | Second Class Lower |
| 45 – 49 | D | 2.0 | Third Class |
| 40 – 44 | E | 1.0 | Pass |
| 0 – 39 | F | 0.0 | Fail |
How GPA & CGPA Work at NOUN
GPA (Grade Point Average) measures your academic performance for a single semester, while CGPA (Cumulative Grade Point Average) is the average of all GPA scores from 100 level up to your current semester.
Formula:
GPA = Total Grade Points Earned ÷ Total Credit Units CGPA = Total Cumulative Grade Points ÷ Total Cumulative Credit Units
Step-by-Step CGPA Calculation Example
Let’s say a student takes 5 courses in one semester:
| Course Code | Credit Units (CU) | Score (%) | Grade | Grade Point (GP) | Total Points (CU × GP) |
|---|---|---|---|---|---|
| GST101 | 2 | 75 | A | 5.0 | 10 |
| MTH101 | 3 | 65 | B | 4.0 | 12 |
| CIT101 | 2 | 55 | C | 3.0 | 6 |
| ECO101 | 3 | 48 | D | 2.0 | 6 |
| ENG101 | 2 | 35 | F | 0.0 | 0 |
Total Credit Units (CU) = 12
Total Points = 34
GPA = 34 ÷ 12 = 2.83
If over several semesters, your total points are 280 and total credit units are 96:
CGPA = 280 ÷ 96 = 2.92
NOUN Class of Degree Classification 2025
| CGPA Range | Class of Degree |
|---|---|
| 4.50 – 5.00 | First Class |
| 3.50 – 4.49 | Second Class Upper |
| 2.40 – 3.49 | Second Class Lower |
| 1.50 – 2.39 | Third Class |
| 1.00 – 1.49 | Pass |
| Below 1.00 | Fail |
NOUN CGPA Grading System and Calculation For All Programmes
1. NOUN Undergraduate CGPA Grading System (BSc, B.A, B.Ed, LLB)
| Score (%) | Grade | Grade Point (GP) | Class of Degree |
|---|---|---|---|
| 70 – 100 | A | 5.0 | First Class |
| 60 – 69 | B | 4.0 | Second Class Upper |
| 50 – 59 | C | 3.0 | Second Class Lower |
| 45 – 49 | D | 2.0 | Third Class |
| 40 – 44 | E | 1.0 | Pass |
| 0 – 39 | F | 0.0 | Fail |
Degree Classification:
| CGPA Range | Class of Degree |
|---|---|
| 4.50 – 5.00 | First Class |
| 3.50 – 4.49 | Second Class Upper |
| 2.40 – 3.49 | Second Class Lower |
| 1.50 – 2.39 | Third Class |
| 1.00 – 1.49 | Pass |
| Below 1.00 | Fail |
2. NOUN Postgraduate Diploma (PGD) CGPA Grading System
| Score (%) | Grade | Grade Point (GP) | Remark |
|---|---|---|---|
| 70 – 100 | A | 5.0 | Distinction |
| 60 – 69 | B | 4.0 | Credit |
| 50 – 59 | C | 3.0 | Pass |
| 0 – 49 | F | 0.0 | Fail |
Classification for PGD:
| CGPA Range | Class of Award |
|---|---|
| 4.50 – 5.00 | Distinction |
| 3.50 – 4.49 | Credit |
| 3.00 – 3.49 | Pass |
| Below 3.00 | Fail |
3. NOUN Masters Programmes (MSc, MA, MBA, M.Ed) CGPA Grading System
| Score (%) | Grade | Grade Point (GP) | Remark |
|---|---|---|---|
| 70 – 100 | A | 5.0 | Distinction |
| 60 – 69 | B | 4.0 | Credit |
| 50 – 59 | C | 3.0 | Pass |
| 0 – 49 | F | 0.0 | Fail |
Classification for Masters:
| CGPA Range | Award |
|---|---|
| 4.50 – 5.00 | Distinction |
| 3.50 – 4.49 | Credit |
| 3.00 – 3.49 | Pass |
| Below 3.00 | Fail |
NOUN MBA Grading System
The MBA programmes follow the same grading as other master’s degrees but have heavier coursework and research project weighting.
NOUN PhD CGPA Grading System
PhD programmes in NOUN are Pass/Fail based on a minimum acceptable CGPA and satisfactory completion of thesis defense.
Minimum CGPA for PhD continuation: 4.00 after the coursework phase.
How to Calculate GPA & CGPA in NOUN (All Levels)
Formula:
GPA = Total Grade Points ÷ Total Credit Units in a Semester CGPA = Total Cumulative Grade Points ÷ Total Cumulative Credit Units
Example (Undergraduate):
| Course | CU | Score | Grade | GP | Points |
|---|---|---|---|---|---|
| MTH101 | 3 | 78 | A | 5.0 | 15 |
| GST101 | 2 | 62 | B | 4.0 | 8 |
| ECO101 | 3 | 55 | C | 3.0 | 9 |
| CIT101 | 2 | 48 | D | 2.0 | 4 |
Total CU = 10
Total Points = 36
GPA = 36 ÷ 10 = 3.6
7. NOUN CGPA Calculator (Manual)
Manual Method:
- Multiply each course CU by GP to get Points.
- Add all Points.
- Divide by total CU.
Free NOUN CGPA Calculator 2025
You can quickly check your GPA or CGPA using the official NOUN student portal:
🔗 NOUN Student Portal CGPA Calculator
Or use free online CGPA calculators where you enter:
- Each course credit unit.
- The grade achieved.
Tips to Maintain a High CGPA at NOUN
- Attend facilitation classes regularly – Active participation improves understanding.
- Target higher scores in higher credit unit courses – They influence CGPA more.
- Submit all TMAs on time – They count towards your exam grades.
- Plan your study schedule – Use NOUN’s flexible learning to your advantage.
- Avoid course failures – F grades drag CGPA down drastically.
Conclusion
Understanding the NOUN CGPA grading system is the first step toward academic excellence. By calculating your GPA regularly and making strategic study choices, you can graduate with a higher class of degree in 2025.
Whether you’re aiming for First Class or Second Class Upper, your CGPA is your academic currency—guard it wisely.
FAQs – NOUN CGPA 2025
Q1: Does NOUN use a 4.0 or 5.0 CGPA scale?
A: NOUN uses a 5.0 scale.
Q2: Can I improve my CGPA after a bad semester?
A: Yes, by scoring high in subsequent semesters.
Q3: Do TMAs affect my CGPA?
A: Yes, because they contribute to your final exam score.
Q4: Is NOUN’s grading system the same for undergraduates and postgraduates?
A: No—postgraduate grading has stricter cutoffs.
Q5: Where can I check my CGPA?
A: On the NOUN Student Portal.
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