CGPA to Percentage: the Formula Each Indian University Actually Uses
There is no national conversion rule. Each university publishes its own, and the same 8.0 CGPA becomes 72.5% at VTU, 75% at JNTUH, 76% under CBSE and 80% at Anna University. This table lists the rule, the regulation it comes from and whether we could verify it against the university's own document.
5 of 11 rules verified against a primary document. Last checked . Converters for a single university are linked in each row.
JNTUH: B.Tech Academic Regulations R22, clause 11.2 — "% of Marks = (final CGPA − 0.5) x 10" — read from the PDF on jntuh.ac.in on 2026-09-18; the R16 and R18 booklets carry the same clause. source
CBCS: DU notification Dean (Exams)/2017/9126 dated 20.12.2017, "Final Percentage of marks = C.G.P.A. based on all six semesters × 9.5", effective from May/June 2018. Students under the NEP/UGCF framework from 2022-23 moved to × 10.
Batches admitted before 2024 use CGPA × 10 under Ordinance 11. Notification GGSIPU/COE/2024/11150124 dated 15.01.2024 introduced (CGPA − 0.75) × 10 for students admitted in 2024 and later.
KTU U.O. No. 1584/2023 dated 29.06.2023 replaced the earlier deduction-based rule with a straight × 10, and a later circular applied it back to the 2015 scheme for uniformity. The obsolete formula was (10 × CGPA) − 2.5.
VIT publishes a CGPA-to-percentage conversion document; the straight × 10 rule is consistent across sources and applies across the Vellore, Chennai, AP and Bhopal campuses. source
Awaiting primary source
Universities that publish no formula
Osmania University has approved no official conversion and three different formulas circulate for it, disagreeing by up to 25 percentage points, so it is deliberately not listed. IISc states that grade points are not convertible and that any factor is notional. IIT Madras awards no division and issues only grade cards. For these, give the CGPA and the statement, not a percentage.
Why the rules differ
A 10-point CGPA compresses marks into grade bands, and each university decides where in the band it assumes a student sits. CBSE's 9.5 is the mean mark of its 91–100 band. Universities that subtract 0.5 or 0.75 before multiplying are placing a 10 CGPA at 95% or 92.5% rather than a theoretical 100. Universities that multiply by 10 treat the scale as a straight percentage. None of these is wrong; they are different conventions, and the only one that matters for you is your own university's.
How we verify a rule
A rule is marked verified only when it appears in a university document (an ordinance, regulation or notification), is consistent across independent sources and does not depend on the admission year. Where the rule changed, the row shows each scheme separately. Rules we could not trace to a document are still published, so a student can find them, but their converters are kept out of search results until the regulation is in hand. Corrections go through the corrections log.
Questions people ask
Is there one formula to convert CGPA to percentage in India?
No. Each university or board publishes its own rule, and they disagree: CBSE multiplies by 9.5, VTU and AKTU subtract 0.75 then multiply by 10, JNTUH subtracts 0.5, Anna University multiplies by 10. An 8.0 CGPA is therefore anywhere between 72.5% and 80% depending on who issued the transcript.
Why do some rows say the formula is awaiting a primary source?
Because the rule is in circulation and consistent across secondary sources, but the university’s own notification could not be opened or the rule changed by admission year. Those converters are published but kept out of search results until the regulation is confirmed.
Which formula should I use on a job application?
The one on your university’s notification, and attach or cite that notification if the employer asks. Where a university states that grade points are not convertible, write the CGPA and say so rather than inventing a percentage.
Why is CBSE 9.5 and not 10?
CBSE derived 9.5 from the average marks of students who scored between 91 and 100 in its own results, so it maps the grade band to the mean mark rather than the top of the band. Universities that use ×10 treat the 10-point scale as a straight percentage.
Can I reuse this table?
Yes, with a link to this page. Each row names the regulation or notification it comes from; the date the list was last checked is printed above the table.
