These CGPA and class of degree tools follow the grading rules Nigerian universities publish: NUC's CCMAS 5-point scale, UNN's scale with no E grade, and the University of Ibadan's 4-point scale. Every rule links to the document it comes from, with the date GradeCat opened it. Each tool works right away with no account, and your grades stay in your browser.
Tools
Which tool do I need?
- What is my GPA or CGPA? Use the CGPA calculator. Enter each course's units and grade for every semester, or add your CGPA so far from your last result.
- What class of degree is my CGPA? The same calculator names the band. On the CCMAS 5-point scale, a Second Class Upper (2:1) is 3.50 to 4.49 and a First Class 4.50 to 5.00.
- What grade does my score give? In the calculator, press Scores out of 100 and type each course score. A 42 is an E worth 1 point under the CCMAS, but an F worth 0 at UNN.
- How does the 4.0 scale at UI work? The grading scale and class of degree page has UI's 4-point table: an A is 4 points, and a First Class is 3.50 to 4.00.
- What is an Upper Credit in polytechnic? The same page has NBTE's polytechnic classes: an Upper Credit is 3.00 to 3.49. There is no polytechnic CGPA calculator yet.
Guides
- How to calculate CGPA in Nigeria: the formula, the CCMAS, UNN and UI tables, and a worked two-semester example.
How university grading works in Nigeria
Each course has units and a score out of 100. The score gives a letter grade, and the grade a point. Under NUC's CCMAS for Computing, 2023, an A (70 to 100) is 5 points and an F (0 to 39) is 0. Your GPA is the unit-weighted average of your points for one semester, and your CGPA covers every semester, with every course counted, passed or failed.
Your final CGPA sets your class of degree. Universities do not all use the same table, so pick the scale your university uses. If yours is not here yet, compare one past semester with your result slip first.
Tools that work with any marks
These GradeCat tools work with marks and percentages, which add up the same way anywhere. Their letter grades follow US scales, so read the percentage they give.
- Grade Calculator: your percentage from marks, like 31 out of 50.
- Weighted Grade Calculator: one percentage when parts of a course, such as tests and an exam, count differently.
- Final Grade Calculator: the score you need in a final exam that counts for a set share.
- Test Grade Calculator: for lecturers and teachers, the percentage for each score on a test.
Not covered yet
- Other universities, such as UNILAG, NOUN, UNILORIN, OAU and ABU: we have not read their own grading rules, so there is no preset for them.
- A polytechnic CGPA calculator: NBTE's grades and classes are on the grading scale page, but neither NBTE curriculum we read says how the CGPA is averaged.
- CGPA to percentage: we found no NUC or university formula, so GradeCat gives none.
- WAEC and NECO grades, and JAMB and Post-UTME aggregates: we have not verified their full rules.
A tool goes live here only after its rules are checked against the document that sets them. Each result is an estimate, not an official result. See the privacy policy for what this site stores.