CBSE: CGPA × 9.5
Percentage = CGPA × 9.5
CBSE arrived at the factor 9.5 from the average marks of students who scored grade A1 (91–100) across subjects, which works out to about 95. So a CGPA of 9.0 indicates about 85.5%, and 10 CGPA about 95%.
University formulas
Engineering and other universities set their own conversion rules. These are the ones most widely used — but your university's latest circular, transcript or a conversion certificate from your college is the authority:
| CGPA | CBSE (× 9.5) | × 10 | VTU | Mumbai Univ. | AKTU |
|---|---|---|---|---|---|
| 10 | 95% | 100% | 92.5% | 82% | 92.5% |
| 9 | 85.5% | 90% | 82.5% | 74.9% | 82.5% |
| 8 | 76% | 80% | 72.5% | 67.8% | 72.5% |
| 7 | 66.5% | 70% | 62.5% | 60.7% | 62.5% |
| 6 | 57% | 60% | 52.5% | 53.6% | 52.5% |
- VTU: Percentage = (CGPA − 0.75) × 10
- Mumbai University: Percentage = 7.1 × CGPA + 11
- AKTU: Percentage = CGPA × 10 − 7.5
- Many autonomous colleges and NITs: Percentage = CGPA × 10
If your university uses something else, choose Custom formula and enter its multiplier and offset — for example 10 and −7.5 for “CGPA × 10 − 7.5”.
Percentage to CGPA
Switch to % → CGPA to go the other way. The calculator reverses the same formula: for CBSE, CGPA = Percentage ÷ 9.5, so 76% is 8.0 CGPA.
SGPA, CGPA and percentage
- SGPA (Semester Grade Point Average) is your average grade point for one semester, weighted by course credits.
- CGPA (Cumulative GPA) averages all semesters so far, weighted by each semester's credits.
- Use our GPA calculator to work out SGPA and CGPA from your grades first, then convert CGPA to percentage here.
Common mistakes when converting
- Using CBSE's × 9.5 for a university CGPA. University formulas differ; × 9.5 is CBSE's rule for school grades.
- Converting SGPA instead of CGPA. Most forms ask for the cumulative figure across all semesters.
- Rounding too early. Convert first, then round the percentage to two decimals as the form asks.
- Mixing 10-point and 4-point scales. Divide by the right maximum — a 3.5/4 GPA is not 35%.
Frequently asked questions
How do I convert CGPA to percentage?
For CBSE, multiply by 9.5: 8.4 CGPA = 79.8%. For universities, use their formula — select it in the calculator, or enter your own.
What is 9 CGPA in percentage?
85.5% by the CBSE formula and 90% on a straight × 10 scale. Other universities differ — for example 82.5% under the VTU formula.
Why does CBSE multiply by 9.5?
Because the average marks of students who scored the top grade (A1, 91–100) in each subject came to about 95%, so 10 CGPA was mapped to 95%.
Which formula should I put on a job or admission form?
The one stated on your mark sheet or in your university's rules. If unsure, ask your college for a CGPA-to-percentage conversion certificate — employers and foreign universities usually accept that.
How do I convert percentage to CGPA?
Divide by the same factor. For CBSE, CGPA = percentage ÷ 9.5; for a × 10 scale, CGPA = percentage ÷ 10.
What is 8.5 CGPA in percentage?
80.75% by the CBSE formula, 85% on a straight × 10 scale and 77.5% under the VTU formula.