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Convert your raw exam marks directly into Percentage and a 10-point CGPA.
Take a 5-minute break every 25 minutes (Pomodoro technique) to maintain peak focus.
For students who've just received a mark sheet listing subject-wise scores rather than a final CGPA, this calculator bridges that gap. Marks-to-CGPA conversion follows the CBSE nine-point grading scale, where each subject's marks are first converted into a grade point, and these grade points are then averaged across all subjects to arrive at your overall CGPA.
The grading table typically looks like this:
| Marks Range | Grade | Grade Point |
|---|---|---|
| 91–100 | A1 | 10 |
| 81–90 | A2 | 9 |
| 71–80 | B1 | 8 |
| 61–70 | B2 | 7 |
| 51–60 | C1 | 6 |
| 41–50 | C2 | 5 |
| 33–40 | D | 4 |
| 21–32 | E1 (Fail) | 0 |
| 0–20 | E2 (Fail) | 0 |
Once each subject's marks are converted to a grade point using this table, the CGPA is calculated by taking a simple average: add up all the grade points and divide by the number of subjects.
Suppose you scored the following in five subjects:
Sum of grade points: 9 + 10 + 8 + 9 + 10 = 46
This is your overall CGPA, which you can then further convert to a percentage using the standard 9.5 multiplier if needed (9.2 × 9.5 = 87.4%).
This method is most commonly used for CBSE Class 10 results, where mark sheets list subject-wise scores and students (or their schools) need to calculate the overall CGPA. It's also useful for students at universities that publish subject-wise marks each semester but expect students to track their own running CGPA before the official calculation is released.
If you've taken an additional subject beyond the required five, CBSE rules state that the best five grade points are considered for CGPA calculation, and the additional subject's grade is mentioned separately on the mark sheet but doesn't factor into your main CGPA unless it replaces a lower-scoring compulsory subject.