Anna University grading at a glance
Anna University, headquartered in Chennai, is the parent body of most engineering colleges in Tamil Nadu. The university uses a 10-point CGPA system with letter grades from O (outstanding) to U (unsuccessful). The official conversion to percentage subtracts 0.5 from the CGPA before multiplying by 10, which makes Anna University's percentages slightly higher than the "general Indian" formula at the same CGPA.
Letter grade scale
| Grade | Grade points | Range (%) |
|---|---|---|
| O | 10 | 91–100 |
| A+ | 9 | 81–90 |
| A | 8 | 71–80 |
| B+ | 7 | 61–70 |
| B | 6 | 50–60 |
| U | 0 | < 50 (fail) |
Worked examples
- CGPA 9.5 → (9.5 − 0.5) × 10 = 90%
- CGPA 8.7 → (8.7 − 0.5) × 10 = 82%
- CGPA 7.4 → (7.4 − 0.5) × 10 = 69%
- CGPA 6.0 → (6.0 − 0.5) × 10 = 55%
How to use the calculator
- The dropdown is locked to Anna University by default.
- Enter your CGPA from the official transcript.
- Read the percentage and verify against your university's convertor.
Why the formula uses 0.5
Anna University's conversion is calibrated so that the minimum passing CGPA (around 5.0) maps to 45%, which is the board's minimum-passing percentage. The 0.5 subtraction keeps the upper end of the scale at 95% for a perfect 10 CGPA, consistent with the "outstanding" threshold.
Use this with
Pair the Anna University CGPA calculator with the SGPA to CGPA calculator if you only have semester-wise SGPAs. Use the CGPA to GPA tool when applying abroad. allgradecalculator.com keeps every Anna University calculator free and updated.