Pick your board or university, enter your CGPA, and this converter gives the percentage using the formula that board or university has published. You can also go the other way and turn a percentage back into a CGPA.
There is no single national formula in India, which is why one CGPA of 8.4 can become 79.8% for CBSE, 84% under a multiply-by-ten rule, or 79% under the JNTUH R25 rule. Each formula here comes with the document it was taken from, so you can check it against your own regulations.
If your university is not listed, choose the custom option and enter the multiplier from your university's own rules. Everything is calculated in your browser.
Reviewed by: CalcMojo Editorial Team
How the conversion works
A CGPA (cumulative grade point average) is a weighted average of grade points, usually on a 10-point scale. A percentage is a share of total marks. Converting one into the other is always an approximation, because the same grade point covers a range of marks. A board or university therefore publishes a rule of thumb, almost always a straight line:
Percentage = (multiplier x CGPA) + offset
Most rules have no offset. A few subtract a small amount from the CGPA first, which in the formula above is a negative offset: (CGPA - 0.75) x 10 is the same as 10 x CGPA - 7.5.
Formulas used by this converter
| Board / university | Formula | Applies to |
|---|---|---|
| CBSE | CGPA x 9.5 | Class 9 and 10 grade points (indicative percentage) |
| VTU | CGPA x 10 | 2022 scheme (regulation says the formula "may be used") |
| VTU | (CGPA - 0.75) x 10 | 2015, 2017 and 2018 schemes only |
| Anna University | CGPA x 10 | Regulations 2015 onwards, UG and PG |
| AKTU | CGPA x 10 | Ordinance example (B.Des 2017-18); check your programme |
| JNTUH | (CGPA - 0.5) x 10 | R25 regulations (M.Tech, MCA, MBA; R26 B.Pharm) |
| SPPU | CGPA x 8.9 | Exam-section conversion sheet, 22 August 2022 |
Each row has a source link in the tool, and the full list of documents is under Sources below.
CBSE
The Central Board of Secondary Education states that the indicative percentage of marks is the CGPA multiplied by 9.5 (and a subject's grade point multiplied by 9.5 for subject-wise marks). CBSE describes this as indicative and not an exact conversion. We found the formula in CBSE's published FAQs and press notes from the years when it first applied; we did not find a newer circular that changes it. Example: a CGPA of 8.4 gives 8.4 x 9.5 = 79.8%.
VTU
Visvesvaraya Technological University uses two different rules by scheme. For the 2015, 2017 and 2018 schemes, its standard formula page gives (CGPA - 0.75) x 10, so a CGPA of 8 is 72.5%. For the 2022 scheme, the regulations say there is no mandatory conversion and that CGPA x 10 may be used, with 8.20 giving 82.0% as the example. The tool lists them separately so you can choose the one for your admission year.
Anna University
The academic regulations from 2021 onward print "Percentage of marks = CGPA x 10" for the consolidated grade sheet, and an office letter of the Additional Controller of Examinations applies the same rule to Regulations 2015, 2018 and 2019. A CGPA of 8.2 is 82%.
AKTU
The AKTU ordinance for the B.Des programme (2017-18) gives the conversion as CGPA x 10 with 8.2 giving 82.0% as the example. We confirmed it in that document. Other AKTU ordinances may differ in detail, so check the one for your programme and session.
JNTUH
The JNTUH R25 regulations for M.Tech, MCA and MBA, and the R26 B.Pharm regulations, give Percentage = (Final CGPA - 0.5) x 10. A CGPA of 7.5 becomes 70%. The R22 B.Tech regulations we checked contain no conversion formula, so a B.Tech student from that regulation should use the certificate the university issues. Other JNTU universities (Kakinada, Anantapur and so on) have their own rules and are not included here.
SPPU
The Savitribai Phule Pune University exam section publishes a sheet titled "Conversion from CGPA to percentage" giving Percentage = CGPA x 8.9, with class boundaries. SPPU also uses other formulas for some programmes, including range-based formulas in recent syllabi, so confirm the one that applies to your degree and pattern.
Universities not listed
We include a university only when we could read its formula in an official document. For the University of Mumbai we found conflicting figures on third-party sites and no clear official formula, so it is not listed. The same applies to many other universities. For them, use the custom option with the multiplier from your own regulations, or ask your college's examination office for a conversion certificate.
Worked examples
- CBSE, CGPA 8.4: 8.4 x 9.5 = 79.8%.
- Anna University, CGPA 8.2: 8.2 x 10 = 82%.
- VTU (2018 scheme), CGPA 8.0: (8.0 - 0.75) x 10 = 72.5%.
- JNTUH R25, CGPA 7.5: (7.5 - 0.5) x 10 = 70%.
- Reverse, CBSE, 79.8%: 79.8 / 9.5 = 8.4 CGPA.
For the reverse conversion the tool undoes the same formula: CGPA = (percentage - offset) / multiplier. It stops you if the percentage is higher than the formula can give. A CBSE CGPA of 10 gives 95%, so 96% is flagged.
Using a converted percentage
Check what the receiving party asks for before you convert yourself.
- Colleges and employers in India often accept the university's own formula or a certificate. Some ask for a percentage certificate from the registrar.
- Competitive exam forms usually say which formula to use, or ask for the CGPA itself.
- Study abroad applications often accept a CGPA on its scale together with the university's grading scheme, and many credential evaluators have their own conversion tables that you do not control.
When a rule says "indicative", the percentage is a guide and not an official figure. Keep a copy of the regulation clause you relied on.
Why two boards give different answers for one CGPA
Different grading systems map marks to grade points differently. A university that gives grade point 10 for 90 marks and above, 9 for 80 to 89 and so on has a very different spread to one that gives a 10 for 100%. The multipliers were set by each body from its own grade bands and its own results, so they should not be mixed. Always use the rule of the institution that issued your grades.
Frequently asked questions
How do I convert CGPA to percentage for CBSE?
Multiply the CGPA by 9.5. A CGPA of 8.4 gives 79.8%. CBSE describes this as an indicative percentage and not an exact marks figure.
What is the VTU CGPA to percentage formula?
For the 2015, 2017 and 2018 schemes, VTU's standard formula is (CGPA - 0.75) x 10. For the 2022 scheme, the regulations say there is no mandatory conversion and CGPA x 10 may be used.
How do I convert Anna University CGPA to percentage?
Multiply the CGPA by 10. Anna University's regulations print this rule for the consolidated grade sheet, so 8.2 becomes 82%.
Is there one official CGPA to percentage formula for all of India?
No. Each board and university decides its own, and some do not publish one at all. That is why the same CGPA can give different percentages under different formulas.
Can I convert a percentage back to CGPA?
Yes. Use the percentage to CGPA box. It reverses the chosen formula, for example 79.8% becomes 8.4 under the CBSE multiplier of 9.5.
Why is my university not in the list?
We only list a formula when we could read it in an official document. For other universities, choose the custom option and enter the multiplier from your university's rules.
Why does the VTU option have two formulas?
VTU uses one formula for the 2015, 2017 and 2018 schemes and a different approach for the 2022 scheme. Pick the one that matches your scheme.
Will a converted percentage be accepted for a job or admission?
It depends on the receiver. Many accept the university's published formula, some want a registrar certificate. Ask them which they prefer.
Sources & Methodology
- CBSE FAQs on grading (Class X) — CGPA x 9.5 as the indicative percentage of marks
- VTU: CGPA standard formula — (CGPA - 0.75) x 10 for the 2015, 2017 and 2018 schemes only
- VTU BE/B.Tech Regulations 2022 — no mandatory conversion; CGPA x 10 may be used
- Anna University UG Academic Regulations 2023 — Percentage of marks = CGPA x 10 (clause 13.5)
- Anna University ACoE letter on CGPA to percentage — same rule for Regulations 2015, 2018 and 2019
- AKTU B.Des Ordinance 2017-18 — CGPA x 10 with an 8.2 example
- JNTUH R25 M.Tech Academic Regulations — (Final CGPA - 0.5) x 10, clause 12.0
- SPPU: Conversion from CGPA to percentage — Percentage = CGPA x 8.9
- Not confirmed from an official source: a University of Mumbai formula (conflicting third-party figures only, so it is left out), and the AKTU rule for programmes other than B.Des. The CBSE multiplier was read from older CBSE publications and could not be matched to a current circular.
This converter gives indicative results based on published formulas. Formulas can change between regulation years, and many boards do not issue a binding conversion. For admissions, jobs, visas or official records, rely on the percentage or certificate issued by your institution.
Data accurate as of: November 2026