Calculate CGPA for Anna University (Tamil Nadu engineering) using credit-weighted semester aggregation and the Anna Univ (CGPA - 0.5) × 10 percentage conversion formula.
Reviewed by the CalculatorKosh Editorial TeamUpdated June 2026Free · No sign-up
Anna University CGPA Calculator
Calculate CGPA for Anna University (Tamil Nadu engineering) using credit-weighted semester aggregation and the Anna Univ (CGPA - 0.5) × 10 percentage conversion formula.
Semesters
Enter SGPA and credits for each semester completed. B.E. / B.Tech has 8 semesters, M.E. / M.Tech has 4. Typical credit load is 22–25 per B.E. / B.Tech semester.
| Sem | SGPA | Credits | |
|---|---|---|---|
| S1 | 010 | ||
| S2 | 010 | ||
| S3 | 010 | ||
| S4 | 010 |
CGPA
(82.03% per Anna Univ formula · First Class)
CGPA: 8.20 across 4 semesters using credit-weighted aggregation, equivalent to 82.03 percent per Anna University formula, letter grade A+, classified as First ClassCGPA
8.20
Percentage
82.03%
Total Credits
96
Letter Grade
A+
Anna University percentage formula
Anna's Office of the Controller of Examinations officially notifies the conversion formula as below. Substituting your current CGPA:
Percentage of Marks = CGPA × 10
= 8.20 × 10
= 82.03%
Per ACOE Letter No. 001/ACOE(UDs)/2021 — the conversion for all UG & PG programmes (R-2015 / R-2018 / R-2019) is CGPA × 10.
Per-semester contribution
Heavier-credit semesters contribute more to the final CGPA. Contributions sum to the CGPA itself.
| Sem | SGPA | Credits | Weight | Contribution |
|---|---|---|---|---|
| S1 | 7.60 | 24 | 25.00% | 1.9000 |
| S2 | 8.10 | 23 | 23.96% | 1.9406 |
| S3 | 8.40 | 25 | 26.04% | 2.1875 |
| S4 | 8.70 | 24 | 25.00% | 2.1750 |
| CGPA | 8.20 | |||
Next step
Try the multi-board CGPA to Percentage calculator
Different boards use different formulas — CBSE × 9.5, Anna × 10, VTU / AKTU (CGPA − 0.75) × 10, JNTU. Switch boards in one click.
How It Works
Anna University, Chennai is the largest engineering university in Tamil Nadu with over 650 affiliated colleges. Every B.E. / B.Tech (8 semesters / 4 years) and M.E. / M.Tech (4 semesters / 2 years) programme reports results on a 10-point scale. This calculator takes one row per completed semester and combines the SGPAs into a single CGPA using the credit-weighted formula that appears on the official Anna University consolidated grade card.
The Anna University CGPA formula
CGPA = Σ (SGPAi × Creditsi) / Σ Creditsi
Each semester contributes in proportion to its credit load — typically 22–25 credits for B.E. / B.Tech, lighter for M.E. / M.Tech. A heavier semester pulls the CGPA more strongly toward its SGPA.
Anna University percentage conversion
Anna's Office of the Additional Controller of Examinations publishes the officially notified conversion formula (Letter No. 001/ACOE(UDs)/2021, for all UG & PG programmes under Regulations R-2015, R-2018 and R-2019):
Percentage of Marks = CGPA × 10
For example, a CGPA of 8.0 converts to 8.0 × 10 = 80%, and a CGPA of 8.2 to 8.2 × 10 = 82%. This is the simplest conversion among Indian engineering boards — note that VTU and AKTU instead use (CGPA × 10) − 7.5, and CBSE schools use CGPA × 9.5, so always use the formula your own university publishes.
Class designation
Anna University classifies successful candidates into four bands on the consolidated grade card:
- First Class with Distinction — CGPA ≥ 8.25 (≥ 82.5%). Additionally requires passing all subjects in first attempt, no break in study, and completing the degree in the minimum prescribed time. Meeting only the CGPA threshold is not enough — Anna's examination cell enforces all four conditions.
- First Class — CGPA 6.75 – 8.25 (67.5 – 82.5%).
- Second Class — CGPA 5.75 – 6.75 (57.5 – 67.5%).
- Pass — below the Second Class threshold but with no failed subjects.
Letter grades on the Anna scale
O (10) for 90+%, A+ (9) for 80–89%, A (8) for 70–79%, B+ (7) for 60–69%, B (6) for 50–59%, C (5) for 40–49%, and RA (re-appear) below the pass threshold. Note that on the consolidated grade card the letter grade is determined per subject, not per CGPA — the page-level letter grade here is a decade-band on the final CGPA for at-a-glance reference.
Sources & method
Implements the standard, textbook mathematical formula. See how we calculate.
Frequently Asked Questions
Anna University, Chennai uses the officially notified conversion formula: Percentage of Marks = CGPA × 10. For example, a CGPA of 8.0 converts to 8.0 × 10 = 80%. This is set out in the ACOE notice Letter No. 001/ACOE(UDs)/2021 for all UG & PG programmes under Regulations R-2015, R-2018 and R-2019. It differs from VTU and AKTU, which use (CGPA − 0.75) × 10, and from CBSE, which uses CGPA × 9.5.
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