CGPA Calculator for Nigeria (5.0 and 4.0 Scales)

These are CGPA calculators for Nigeria on 5.0 and 4.0 scales. You can switch between the tabs below to display the appropriate calculate the cummulative grade point average. Click the 5.0 GPA Calculator or 4.0 GPA Calculator as appropriate.

How to use NGSchoolz CGPA Calculator for Nigerian Schools

Enter your course codes (e.g. MTS 101) in the first column. Enter the corresponding score i.e. what you scored in the course, in the middle column. Type the exact score e.g. 75 instead of the grade A. In the third column, enter the corresponding course units.


If you found this CGPA tool useful, please share it with any students that might also find it useful.

Note that it is not mainly for Nigerian students but students any tertitary institution that uses the 5.0 scale. That is, any student in any part of the world can use it.

Please also note that you need to make sure of your scoring system. For this CGPA calculator to work for you, even on a 5.0 scale, the following have to apply.

The table below should be clear for you to comprehend. It's a designation table for the scores, grade points and grades used by most schools. Others might differ but never in calculation.

Total score(100%) Grade Grade Point(GP)
100 - 70 A 5.00
69 - 60 B 4.00
59 - 50 C 3.00
49 - 45 D 2.00
44 - 0 F 0.00

  • The F (Fail) grade must be bewteen 0 and 39.
  • E for your school must be between 40 and 44 out of a total of 100 marks.
  • D is graded as scores from 45 to 49.
  • C is any score bewteen 50 and 59
  • B is a score from 60 to 69, and finally,
  • A is any score from 70 to 100 marks.

We had to clarify this because we understand that some schools use grading systems that further break down each division. For example, some schools not only have the A grade, but also the AB or BA grade if you score, say 65. This means that they multiply the unit by 4.5 instead of 4.

If this is the system your university, polytechnic or college adopts, this CGPA calculator will not work for you. Thank you for using this GPA tool. Please don't forget to share it.