To calculate your CGPA, multiply the grade point earned in each subject by its credit weight to get the credit points. Sum all the credit points across all semesters and divide by the total sum of course credits. The formula is: CGPA = Total Credit Points / Total Course Credits.
Step-by-Step Calculation Guide
Let's walk through a concrete example. Suppose you completed three courses in your first semester with the following results:
| Subject | Credits | Grade Point | Calculation (Credits × Grade Point) |
|---|---|---|---|
| Mathematics | 4.0 | 9 (Grade A) | 4.0 × 9 = 36.0 |
| Physics Lab | 1.5 | 10 (Grade O) | 1.5 × 10 = 15.0 |
| Computer Science | 3.0 | 8 (Grade B+) | 3.0 × 8 = 24.0 |
Step 1: Find Total Credit Points
Add up the final column:
36.0 + 15.0 + 24.0 = 75.0 Credit Points.
Step 2: Find Total Credits
Add up the course credits:
4.0 + 1.5 + 3.0 = 8.5 Credits.
Step 3: Divide Credit Points by Total Credits
Divide the total credit points by total credits:
75.0 / 8.5 = 8.82 GPA.
Calculating Cumulative CGPA Across Multiple Semesters
Your CGPA is the cumulative version of the calculation above. Instead of looking at a single semester, you sum the values across all semesters.
⚠️ Common Mistake: Simply averaging semester GPAs (e.g., if Sem 1 GPA is 8.0 and Sem 2 GPA is 9.0, guessing the CGPA is 8.5) is mathematically incorrect if the semesters have different total credits. You must sum the raw credit points and divide by the total credits.
Skip the manual grade math
CGPA IQ handles the credit weights, grade conversions, and sums automatically. Scan or input in 30 seconds.
Start Automated Calculation