Anna University conversion
Anna University CGPA to Percentage
Enter CGPA or percentage. The corresponding value updates instantly.
Percentage of Marks = CGPA × 10
Equivalent CGPA: —
Documented conversion
Percentage of Marks = CGPA × 10. The reverse calculation is CGPA = Percentage ÷ 10.
The ×10 rule is explicitly published in the R2021 affiliated B.E./B.Tech. amended grade-sheet clause and in Anna University's University Departments circular for R2015, R2018 and R2019. R2025 affiliated regulations also use the same CGPA framework; use the exact rule for your own programme if you are under another regulation.
Official sources: R2021 Undergraduate Regulations · ACOE CGPA conversion circular.
Frequently asked questions
What is Anna University's official CGPA-to-percentage formula?
Percentage = Percentage of Marks = CGPA × 10, published in Academic Regulations 2025 · B.E./B.Tech. Affiliated.
Can you show a worked example?
A CGPA of 8.5 converts to 85% using Percentage of Marks = 8.5 × 10.
Does every Anna University campus use the same conversion?
Affiliated non-autonomous B.E./B.Tech. institutions under R2025 or R2021. University Departments and autonomous colleges can follow different regulations.
University rule notes
Use the rule for your record
Regulation scope
The linked conversion documents explicitly support Anna University R2021 affiliated undergraduate rules and the University Departments R2015, R2018 and R2019 circular. R2025, autonomous colleges and other programmes may publish a different certificate.
Conversion formula
Percentage of Marks = CGPA × 10. Reverse conversion: CGPA = Percentage ÷ 10.
Use the final CGPA printed by the university. This page is an estimate unless the receiving institution accepts the cited conversion rule.
What is counted
- The official final CGPA after the applicable Anna University course and credit rules.
- The university conversion certificate or circular required by the application.
What is excluded
- Semester GPA used as if it were final CGPA.
- A CGPA from an autonomous college, another regulation or another university without checking its own conversion document.
Worked example
A final CGPA of 8.40 converts to 84.00%. A stated percentage of 76.50% converts back to 7.65 CGPA.
Common mistakes
- Using the common 9.5 multiplier instead of Anna University’s cited ×10 rule.
- Rounding the CGPA too early or applying this formula to a semester GPA.
Based on R2025 and R2021 affiliated B.E./B.Tech. regulations
Affiliated non-autonomous B.E./B.Tech. institutions under R2025 or R2021. University Departments and autonomous colleges can follow different regulations. Source locator: R2025 clauses 20 to 21 and R2021 amendments on grade exclusions and conversion Reviewer: GradeCalculator.in editorial team.GradeCalculator.in is an independent calculator and is not affiliated with Anna University, Chennai.
Anna University campus and grading coverage
The regulation-aware GPA tool covers B.E./B.Tech. students in Anna University affiliated non-autonomous institutions under R2025 and R2021. University Departments and autonomous colleges can follow different regulations; the generic CGPA/target arithmetic is safe only when you enter the official GPA and counted credits from your own regulation.