CGPA to percentage, the official way.
There is no universal formula. There is your university’s formula — and here it is, quoted from the regulation.
Pick your university
Each page uses that university’s own published rule, quoted with its source. Where the documents disagree, or no rule exists, the page says so.
JNTUH
% of Marks = (final CGPA − 0.5) × 10
R22 B.Tech · checked 22 Sep 2026
JNTUH R25
Percentage (%) of Marks = (Final CGPA − 0.5) × 10
R25 B.Tech · checked 22 Sep 2026
JNTUK
% of marks = (CGPA − 0.5) × 10
R23 B.Tech · checked 22 Sep 2026
VTU 2022
Percentage of marks secured, M = CGPA earned × 10
2022 scheme (B.E./B.Tech Regulations 2022) · checked 23 Sep 2026
VTU
% of marks secured, M = (CGPA earned − 0.75) × 10
2021 scheme (CBCS/OBE) · checked 22 Sep 2026
AKTU
Percentage of marks scored = CGPA × 10
B.Tech Ordinance 2018-19 (Revised) · checked 23 Sep 2026
Anna University
% of Marks = CGPA × 10
Academic Regulations 2023 (Revision 1, 2024) · checked 22 Sep 2026
Anna University R-2021
Percentage of Marks = CGPA × 10
Regulations 2021 (B.E./B.Tech, affiliated colleges) · checked 23 Sep 2026
KTU
Equivalent percentage of mark = 10 × CGPA
B.Tech Regulations 2019 (R6.21 as amended in 2023) · checked 1 Oct 2026
Sreenidhi University
Percentage of Marks = (Final CGPA earned − 0.5) × 10
Grading System (B.Tech) · checked 1 Oct 2026
SPPU
Circular 332/2020 and a 2022 exam-section sheet disagree Two official formulasMumbai University
Conversion from actual marks since 1 Jan 2026 Formula withdrawnOsmania University (B.E.)
The B.E. rules define CGPA but give no conversion No official formulaNot listed yet: JNTUA, because its official regulations site (dap.jntua.ac.in) refused connections when checked on 23 September 2026. It will be added once the document can be read.
Why there’s no single converter here
Most CGPA converters online ask for a number and multiply it by 9.5. That rule comes from CBSE’s old Class 10 grading. It has nothing to do with engineering universities, and it gives the wrong answer for every university listed above.
The universities don’t agree with each other either. VTU’s 2021 scheme subtracts 0.75 before multiplying by 10, while its 2022 scheme doesn’t. JNTUH, JNTUK (R23) and Sreenidhi University subtract 0.5. KTU dropped its − 2.5 in 2023. AKTU revised its rule from (CGPA − 0.75) × 10 to CGPA × 10. SPPU has published two different conversions. Mumbai University withdrew its formula in 2026.
So this site lists a university only after its rule has been read from its own documents. If yours isn’t here yet, it’s because I haven’t found the official document — email me the link and I’ll add it.
Common questions
Can I just multiply my CGPA by 10?
Only if your university says so. Anna University, AKTU (revised ordinance), KTU (2019 scheme, since 2023) and VTU’s 2022 scheme do. JNTUH, JNTUK, Sreenidhi University and VTU’s 2021 scheme do not — they subtract an offset first.
How do I go from percentage back to CGPA?
Reverse your university’s rule. The percentage to CGPA page does it for every official rule at once.
What if my university has no official formula?
Report your CGPA as it is, with its scale (for example “8.2 / 10”), and let the employer or university convert it. The scale converter shows the plain arithmetic, clearly labelled as unofficial.