Marks and GradesCBSE CGPA and the 9.5 rule
If your CBSE class 10 certificate shows grades and a CGPA instead of marks, this page explains what those numbers mean, using CBSE's own circular and FAQs.
The grading scheme
CBSE's Circular No. 24 of 28 May 2010 records that the Board introduced grading at the secondary level, for classes 9 and 10, from the academic year 2009-10. Under it, the circular says, a student's performance was assessed by ordinary numerical marking and then converted into grades on the basis of pre-determined ranges of marks. The "Statement of Subject wise Performance" for class 10 showed only grades, each with a grade point (GP), and a CGPA.
How the CGPA was worked out
CBSE's FAQs of 2016 state it in one line: the Cumulative Grade Point Average is the average of the grade points obtained in all the subjects, excluding the additional sixth subject, as per the Scheme of Studies. So with five main subjects:
CGPA = sum of the five grade points ÷ 5
Example. Grade points of 9, 8, 10, 9 and 8 add up to 44. CGPA = 44 ÷ 5 = 8.8. The FAQs add that grades of classes 9 and 10 were not combined; the CGPA shown is for class 10.
The 9.5 rule
The circular gives what it calls an indicative equivalence of grade point and percentage of marks:
subject-wise indicative percentage = 9.5 × GP of the subject
overall indicative percentage = 9.5 × CGPA
For the example above, 8.8 × 9.5 = 83.6%.
What "indicative" means
It means approximate. A grade covers a range of marks, so the grade point cannot tell you the exact marks behind it. A student with grade point 9 in a subject may have scored anywhere within that grade's range. Multiplying by 9.5 gives a single figure to work with where a percentage is demanded, such as on a form, but it is not the student's actual percentage, which was never printed.
The circular itself used the indicative percentage for a practical purpose: as a guide for schools admitting students to class 11, including how to break a tie between students with the same CGPA.
Qualifying under the scheme
According to the same circular, a candidate who obtained the qualifying grade, a minimum of D, in all subjects excluding the sixth additional subject was awarded a Qualifying Certificate. Those with E1 or E2 in one or more subjects had to improve their performance in those subjects.
Using it today
- If your certificate shows a CGPA, write the CGPA, and where a percentage is required, 9.5 × CGPA, stating that it is the indicative percentage by the CBSE formula.
- If your certificate shows marks in each subject, do not use 9.5 at all. Calculate the percentage from the marks.
- Do not apply 9.5 to a college or university CGPA. See why there is no single formula.
The converter has the CBSE rule built in, and works both ways.
Check with your board or university. The rules quoted on this site were read in the official documents on 12 November 2026. Boards and universities revise them, and yours may differ. For anything that decides an admission or a job, use the rule printed on your own mark sheet or in your institution's regulations. This is an independent site.