How to Calculate CGPA (Complete Guide with Formula & Examples)
CGPA stands for Cumulative Grade Point Average. It is a numerical measure used by schools, colleges, and universities to evaluate a student’s overall academic performance. In this article, you will learn what CGPA is, how to calculate it using formulas, and how to convert CGPA to percentage.
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What is CGPA?
CGPA refers to the average grade points obtained in all semesters. It is a weighted average of your semester grades based on credit points.
In simple terms: CGPA = Total Grade Points / Total Credits.
CGPA Calculation Formula
CGPA = ( Σ (Grade Points × Credits) ) ÷ ( Σ Total Credits )
How to Calculate CGPA (Step-by-Step)
- Step 1 – Note the grade points for each subject.
- Step 2 – Note the credit value of each subject.
- Step 3 – Multiply each subject’s grade points by its credits.
- Step 4 – Add all quality points (GP × Credits).
- Step 5 – Divide by total credits to get CGPA.
CGPA Calculation Example
| Subject | Credits | Grade Point | Quality Points (GP × C) |
|---|---|---|---|
| Mathematics | 4 | 9 | 36 |
| Science | 3 | 8 | 24 |
| Computer | 2 | 10 | 20 |
Total Quality Points = 80
Total Credits = 9
CGPA to Percentage Conversion
Most institutions use this formula:
For example: 8.8 × 9.5 = 83.6%
Difference Between GPA and CGPA
- GPA: Grade Point Average for one semester
- CGPA: Cumulative grade points for all semesters
Frequently Asked Questions
1. What is a good CGPA?
A CGPA above 8.0 is generally considered excellent.
2. Is CGPA calculated yearly?
No. It is calculated after combining all semester grades.
3. How do I convert SGPA to CGPA?
CGPA is the weighted average of all semester SGPAs based on credits.
4. Can CGPA be calculated without credits?
Yes, for boards that do not follow the credit system, just take average grade points.
