Anna University GPA & CGPA Calculator (Regulation 2021)
If you’re studying under Anna University or one of its affiliated engineering colleges in Tamil Nadu, this free tool calculates your semester GPA and overall CGPA on the official 10-point scale, converts your CGPA to a percentage, and tells you exactly which degree classification you’re on track for.
Selecting Semester 1 or 2 auto-fills the common first-year subjects. Edit any row, or add/remove subjects to match your actual syllabus.
Total quality points: 0
Enter the GPA and total credits for each semester you’ve completed so far to get your cumulative CGPA.
Regulation 2017 vs Regulation 2021: What Changed
Anna University moved to the Choice Based Credit System (CBCS) under Regulation 2021, replacing the older 2017 rules. If you’re not sure which one applies to you, check your admission year — R2021 governs students admitted from 2021 onward. The main practical differences:
Credit weighting
Core subjects usually carry 3–4 credits, labs 1.5–2. Higher-credit subjects move your GPA more than electives do.
10-point grading
Your combined internal + external marks map to a letter grade. ‘O’ is worth 10 points, ‘B’ is worth 6.
Final CGPA
All 8 semesters are combined into one CGPA, which decides your degree classification and Distinction eligibility.
| Parameter | Regulation 2017 | Regulation 2021 (current) |
|---|---|---|
| Minimum passing grade | E grade (50–54 marks) | C grade / B grade depending on course |
| Grade scale | O, A+, A, B+, B, RA | O, A+, A, B+, B, C, RA |
| Fail/arrear code | RA (Re-Appearance) | RA / U (Unsuccessful attempt) |
| First Class cutoff | ≥ 6.50 CGPA | ≥ 6.50 CGPA |
| Internal assessment weight | ~20% | Up to 40% (continuous assessment) |
That last row matters more than students usually realize: with internal assessment now worth up to 40%, consistent performance in class tests and assignments protects your GPA far more than it used to, even if one end-semester exam goes badly. See our guide on what credit hours actually measure if you want the full mechanics.
How an Arrear (‘RA’) Grade Affects Your CGPA
This is the single most common source of confusion. When you fail a subject, you get 0 grade points — but the credits for that subject still count toward your total. So a 4-credit subject you fail adds 4 credits to your denominator and contributes nothing to your numerator, which pulls your GPA down harder than a low pass would.
Worked example: say you take a 4-credit Data Structures course and score an A+ (9 points). That’s 4 × 9 = 36 quality points from that one subject. Now imagine you’d failed it instead (RA, 0 points) — you’d still add 4 credits to your total, but contribute 0 points, dragging your average down. Clearing the arrear in the next supplementary exam replaces that zero with real points and recovers your GPA.
Also worth knowing: an RA on your record — even if you later clear it — caps you out of “First Class with Distinction.” You can read more in our explainer on the difference between CGPA and SGPA.
Converting Anna University CGPA to Percentage
Anna University runs entirely on the 10-point scale internally, but recruiters like TCS, Infosys, Cognizant, and Wipro typically ask for a percentage on application forms. Anna University’s own conversion is a simple multiplication — no complex subtraction formula like some other boards use:
So an 8.25 CGPA is 82.5%. That’s it — no rounding tricks, no extra steps. If you want the equivalent for other Indian universities, our country-wise CGPA to percentage guide covers the different formulas side by side.
Degree Classification Cutoffs
Once you finish all 8 semesters (or 6 for lateral entry), the Controller of Examinations assigns your final classification based on your CGPA:
| CGPA | Classification | Condition |
|---|---|---|
| ≥ 8.50 | First Class with Distinction | No history of RA — all exams cleared on first attempt |
| 6.50 – 8.49 | First Class | Completed the degree within the standard duration |
| 5.00 – 6.49 | Second Class | Standard pass classification |
Academic Bank of Credits (ABC): 2026 Update
As part of the National Education Policy (NEP 2020) rollout, Anna University now supports the Academic Bank of Credits, letting you bank verified credits earned through NPTEL and SWAYAM courses and apply them toward your degree. If you’re taking an outside elective — say, a specialised AI or data science course — this is how those credits get folded into your official CGPA. Our tool above handles blended credits the same way: just add them as an extra row with their actual credit weight and grade.
📚 Official sources for verification
- Centre for Academic Courses (CAC): cac.annauniv.edu — official Regulation 2021 curriculum and credit structure.
- Controller of Examinations: coe1.annauniv.edu — grading and result-processing rules.
- Anna University main site: annauniv.edu — general academic notifications.