About GradeKar

GradeKar is a free educational tool I built for Indian college students. It helps you convert CGPA to percentage (and vice versa) using your university's exact published formula — not a generic approximation.

Built and maintained by Ritusmoi Kaushik. Indie developer; also runs gstextract.com (a free GST invoice extractor for small businesses) and maintains an open CC-BY-4.0 dataset of Indian university grading formulas on GitHub. When something on this site is wrong, [email protected] gets read by me, not a support inbox.

Why I Built This

Every Indian university uses a different method to convert CGPA to percentage. VTU uses (CGPA - 0.75) × 10. Anna University uses CGPA × 10. CBSE uses CGPA × 9.5. And policies change — Mumbai University, for instance, used (CGPA × 7.1) + 11 until 31 December 2025, then repealed the formula entirely under Circular Exam/Result/803 of 2026 effective 1 January 2026. Using the wrong formula gives you the wrong percentage — which matters for job applications, loan approvals, visa processes, and higher education admissions.

I kept seeing classmates and juniors get tripped up by this, copying random numbers from generic online calculators that didn't match their university's actual rules. So I built GradeKar as a single place where every formula is tied to a specific university's official regulations, and you never have to wonder which one applies to you.

Commitment to Accuracy

Every formula on this site is sourced from official university academic regulations and circulars. I cite the sources on every calculator page. If a formula cannot be verified from an official source, I clearly mark it and use a standard approximation instead of guessing. For the full method — source documents, "Verified [date]" stamps, and the regulation-change workflow — see How we verify formulas.

Found an error? Use the "Report incorrect formula" link on any calculator page, or email [email protected] — I read every report personally and update formulas the same week.

Disclaimer

GradeKar is an independent tool and is not affiliated with, endorsed by, or officially connected to any university, board, or educational institution mentioned on this site. University names, logos, and formulas are used solely for identification and informational purposes under the doctrine of nominative fair use (Section 30, Trade Marks Act 1999).

All formulas are sourced from publicly available university academic regulations and may change. For official purposes (transcripts, loan applications, visa processes), always verify with your university's examination department.

Contact

General: [email protected]

Formula errors: [email protected]

Based in: Guwahati, Assam, India