CGPA to percentage calculator
CBSE's formula: percentage = CGPA × 9.5, and back again
Type a CGPA to get the percentage, or a percentage to get the CGPA. The example is a CGPA of 9.4.
CGPA to percentage
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Percentage to CGPA
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CBSE calls this an indicative percentage: a guide, not your exact marks. Your board's or university's own rule decides.
The formula
CBSE gave its own rule for turning a CGPA into marks: the overall indicative percentage of marks is 9.5 × CGPA. For one subject it is 9.5 × that subject's grade point. So a CGPA of 9.4 is 9.4 × 9.5 = 89.3%. Going the other way, divide by 9.5: 85.5% ÷ 9.5 = 9 CGPA.
The source is CBSE's own published wording, quoted below the tool. CBSE describes the result as indicative, so treat it as a guide for forms and comparisons, not as the marks you actually scored.
What CGPA means here
CGPA, cumulative grade point average, is the average of your grade points across your subjects, out of 10. Under the CBSE scheme it leaves out the sixth, additional subject. The second box works it out: type each subject's grade point and it shows the average and the working.
Universities and other boards
Many universities and boards use their own conversion, and some print it on the marksheet or in their rules. If yours uses a different multiplier, type it in the Multiplier box. If it uses a different kind of formula, follow your university's rule instead: their figure is the one that counts.
Rounding
Results are shown to two decimal places. The working line shows the exact sum, so you can check it on any calculator.
Where the formula comes from
CBSE Annual Report 2013-14, page 28, on the Statement of Subject wise Performance: "Cumulative Grade Point Average (CGPA) is the average of Grade Points obtained in all the subjects (excluding 6th additional subject as per Scheme of subjects)", and "Subject wise indicative percentage of marks = 9.5 × GP of the subject" and "Overall indicative percentage of marks = 9.5 × CGPA". Checked 15 Nov 2026.