West African University Grading Scale
West African universities in Nigeria and Ghana share a common degree classification framework — First Class, Second Class Upper, Second Class Lower, Third Class, and Pass — but apply it using different grade point scales. Nigeria uses a 5-point CGPA system governed by the National Universities Commission (NUC), while Ghana uses a 4-point scale regulated by the National Accreditation Board (NAB). This page compares both systems and explains how OpenEduCat supports each.
Nigeria: 5-Point CGPA Scale (NUC Standard)
The NUC Benchmark Minimum Academic Standards apply to all accredited Nigerian universities. Grade points are multiplied by credit units to compute the CGPA.
| Grade | Percentage Range | Grade Points (5.0 Scale) | Degree Classification |
|---|---|---|---|
| A | 70–100% | 5.0 | First Class Honour |
| B | 60–69% | 4.0 | Second Class Upper |
| C | 50–59% | 3.0 | Second Class Lower |
| D | 45–49% | 2.0 | Third Class |
| E | 40–44% | 1.0 | Pass |
| F | Below 40% | 0 | Fail |
NUC CGPA thresholds: First Class ≥4.50, Second Class Upper 3.50–4.49, Second Class Lower 2.40–3.49, Third Class 1.50–2.39, Pass 1.00–1.49, Fail below 1.00.
Ghana: 4-Point GPA Scale (NAB Standard)
Ghanaian universities regulated by the National Accreditation Board use a 4.0 GPA scale. The University of Ghana, KNUST, and UCC all apply this framework.
| Grade | Percentage Range | Grade Points (4.0 Scale) | Degree Classification |
|---|---|---|---|
| A | 80–100% | 4.0 | First Class Honour |
| B+ | 75–79% | 3.5 | Second Class Upper |
| B | 70–74% | 3.0 | Second Class Upper |
| C+ | 65–69% | 2.5 | Second Class Lower |
| C | 60–64% | 2.0 | Second Class Lower |
| D+ | 55–59% | 1.5 | Third Class |
| D | 50–54% | 1.0 | Third Class / Pass |
| F | Below 50% | 0 | Fail |
CGPA thresholds for Ghana: First Class ≥3.60, Second Class Upper 3.00–3.59, Second Class Lower 2.00–2.99, Third Class 1.50–1.99, Pass 1.00–1.49.
Key Differences Between Nigeria and Ghana Grading
Grade Point Scale
Nigeria uses a 5-point scale (A=5.0) while Ghana uses a 4-point scale (A=4.0). This means a CGPA of 3.8 in Nigeria indicates Second Class Upper, while 3.8 in Ghana indicates First Class. When comparing West African graduates, always clarify which scale applies.
First Class Threshold
Nigeria typically requires 70% (A grade, 5.0 points) with a CGPA of 4.50 or above for First Class. Ghana requires approximately 80% (A grade, 4.0 points) with a CGPA of 3.60 or above. The Ghanaian threshold is effectively harder to achieve in percentage terms.
Regulatory Body
Nigerian universities are accredited by the National Universities Commission (NUC) and must comply with NUC Benchmark Minimum Academic Standards. Ghanaian universities are regulated by the National Accreditation Board (NAB) and the Ghana Tertiary Education Commission (GTEC).
Credit Unit System
Both countries use credit unit-weighted CGPA calculation. Nigeria commonly uses a semester credit hours model similar to the US system. Ghana uses a credit hour system that has evolved from the British model. OpenEduCat computes CGPA correctly under both frameworks.
Frequently Asked Questions
Common questions about Nigerian and Ghanaian university grading scales.
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OpenEduCat supports Nigeria's 5-point NUC scale and Ghana's 4-point NAB scale with automatic CGPA computation and degree classification.