GPA Calculator Anna University: GPA, CGPA and Percentage
This GPA calculator for Anna University works out semester GPA and CGPA from each subject's credits and grade for students of the university departments and its affiliated engineering colleges across Tamil Nadu. It supports Regulation 2021 (also R2017's O to C grades) and Regulation 2013 (S to E grades), and converts CGPA to percentage with Anna University's rule.
By Umer Sattar Updated 21 Oct 2026
16 credits · 137 credit points
SGPA 8.56
- SGPA
- 8.56
- CGPA
- 8.56
- Percentage
- 85.63%
- Subjects
- 5
Anna University grade system (all regulations)
| R2021 / R2017 grade | Points | R2013 grade | Points |
|---|---|---|---|
| O | 10 | S | 10 |
| A+ | 9 | A | 9 |
| A | 8 | B | 8 |
| B+ | 7 | C | 7 |
| B | 6 | D | 6 |
| C | 5 | E | 5 |
| U / RA | 0 | U | 0 |
A “U” (or RA, re-appearance) carries no points and is left out of GPA until the subject is cleared; once passed, the new grade counts in the semester it is cleared, following the regulation.
GPA calculator Anna University formula explained
GPA = Σ (credits × grade points) ÷ Σ credits (one semester) CGPA = Σ (credits × grade points) ÷ Σ credits (all semesters) Percentage = CGPA × 10
Example: a second-semester student with subjects of 4, 4, 3, 3, 2 and 1.5 credits, graded A+, A, O, B+, A+ and O, gets (36 + 32 + 30 + 21 + 18 + 15) ÷ 17.5 = 8.69 GPA, which is 86.9% by Anna University's rule. Faculty at affiliated colleges in Coimbatore and Madurai often remind students that labs with 1.5 or 2 credits move the GPA more than they expect.
How do I calculate GPA for Anna University sem 2?
Exactly like any semester: enter that semester's subjects with their credits and grades. To get CGPA after sem 2, add sem 1's GPA and credits in the optional fields.
GPA to CGPA in Anna University
CGPA weighs every semester by its credits. Enter the CGPA so far and the total credits completed, then the current semester's subjects, and the calculator gives the updated CGPA.
Anna University percentage formula
Anna University's rule is simple: percentage = CGPA × 10. A CGPA of 8.72 is 87.2%. Class classification (First Class with Distinction, First Class, Second Class) depends on CGPA and on completing the programme within the regulation's time limit, so check the regulation for those terms.
Choose Regulation 2013 in the grading menu if the grade card shows S, A, B, C, D, E grades; Regulation 2021 and 2017 use O, A+, A, B+, B, C.
Anna University GPA Calculator: questions people ask
Does this GPA calculator work for Anna University Regulation 2021?
Yes. Regulation 2021 (and 2017) grades O, A+, A, B+, B and C are loaded by default.
How do I calculate GPA to CGPA in Anna University?
CGPA = total (credits × grade points) of all semesters ÷ total credits. Enter the earlier CGPA and credits in the calculator to combine them.
How do I calculate GPA for Anna University sem 2?
Enter sem 2's subjects with credits and grades for GPA; add sem 1's GPA and credits to get CGPA.
What is the Anna University percentage formula from CGPA?
Percentage = CGPA × 10. For example, 8.5 CGPA is 85%.
Does this work for Regulation 2013?
Yes. Choose “Anna University R2013” in the grading system to use S, A, B, C, D, E grades.