Anna University CGPA to Percentage Calculator
Anna University affiliates most engineering colleges across Tamil Nadu and publishes CGPA on every semester grade sheet. Enter your CGPA below for an instant, correctly-converted percentage.
Anna University ACOE official circular: Percentage = CGPA × 10
How Anna University CGPA converts to percentage
The official formula
Anna University ACOE official circular: Percentage = CGPA × 10. Applicable to all UG and PG engineering programmes under Anna University's affiliated college system.
For example, a Anna University CGPA of 7.8 converts to 78.00%.
What makes Anna University's conversion distinctive
Anna University’s ACOE circular uses a flat CGPA × 10 conversion across affiliated engineering colleges in Tamil Nadu — the opposite of VTU/AKTU’s offset formula, which is why TN vs Karnataka marksheets diverge for the same CGPA.
Other universities use a different formula
CGPA-to-percentage conversion is not standardised across India — each university publishes its own circular. The table below shows every formula this calculator supports, so you can double-check or switch if you need a different one.
Frequently asked questions
What is the Anna University CGPA to percentage formula?
Anna University ACOE official circular: Percentage = CGPA × 10. Applicable to all UG and PG engineering programmes under Anna University's affiliated college system.
Is this the official Anna University formula?
Yes — it's taken from Anna University's own published circular/regulations, not estimated from a generic multiplier. Using the wrong formula (for example, assuming a flat ×9.5 multiplier when your university uses an offset) can misstate your percentage by several points on official documents.
Does the same formula apply to both CGPA and SGPA?
Yes for Anna University — the published conversion is a direct multiplier on the grade-point value itself (×10). Use this page for a single semester's SGPA or the companion CGPA page for your cumulative score.
How do I convert percentage back to grade points?
Switch to "Percentage → CGPA" mode above — it reverses the same Anna University formula correctly, including undoing any offset.
Can I use this for other universities too?
Yes — use the "University / board" dropdown in the calculator to switch to another supported university, or enter your own custom multiplier if yours is not listed.
Anna University CGPA & percentage calculators
For developers & AI agents
The Anna University CGPA to Percentage Calculator is also available as a free, unauthenticated JSON API — no API key, no sign-up, CORS enabled for all origins. Send a GET request with the parameters below and receive the computed result as JSON, including the source of the format or formula used. Invalid input returns HTTP 400 with a JSON { "error": "..." } body.
GET https://solutions.knwdle.com/api/tools/anna-university-cgpa-to-percentage-calculator| Parameter | Required | Description |
|---|---|---|
cgpa | No | CGPA on Anna University's 10-point scale — converts to percentage. Pass either this or "percentage". |
percentage | No | Percentage (0–100) — converts back to CGPA. Pass either this or "cgpa". |
Request:
GET https://solutions.knwdle.com/api/tools/anna-university-cgpa-to-percentage-calculator?cgpa=7.8
Response:
{
"tool": "anna-university-cgpa-to-percentage-calculator",
"university": "Anna University",
"input": {
"cgpa": 7.8
},
"percentage": 78,
"formula": "percentage = cgpa × 10",
"source": "Anna University ACOE official circular: Percentage = CGPA × 10"
}Manage grades and results the structured way
Knwdle stores every student's academic records, tests, and results in one searchable system — no more manually tracking CGPA conversions.
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All supported university formulas
Sourced from each university's official circular — not a generic estimate.
| University / board | Formula | Example (CGPA 8.0) | |
|---|---|---|---|
| CBSE | CGPA × 9.5 | 76.00% | Use dropdown above |
| Delhi University | CGPA × 9.5 | 76.00% | Open |
| VTU | (CGPA − 0.75) × 10 | 72.50% | Open |
| Mumbai University | (CGPA × 7.1) + 11 | 67.80% | Open |
| JNTUH | (CGPA − 0.5) × 10 | 75.00% | Open |
| JNTUA* | (CGPA − 0.5) × 10 | 75.00% | Use dropdown above |
| JNTUK | (CGPA − 0.75) × 10 | 72.50% | Open |
| GTU | (CGPA − 0.5) × 10 | 75.00% | Open |
| AKTU | (CGPA − 0.75) × 10 | 72.50% | Open |
| KTU | CGPA × 10 | 80.00% | Open |
| MAKAUT | (CGPA − 0.75) × 10 | 72.50% | Open |
| VIT | CGPA × 10 | 80.00% | Open |
| SRM | CGPA × 10 | 80.00% | Open |
| IKGPTU | CGPA × 10 | 80.00% | Open |
| RGPV | CGPA × 10 | 80.00% | Open |
| SPPU | Circular 332 grade bands | 72.50% | Open |
| RTU | CGPA × 10 | 80.00% | Open |
| Calcutta University | CGPA × 10 | 80.00% | Open |
| Lucknow University | CGPA × 10 | 80.00% | Open |
| AMU | CGPA × 10 | 80.00% | Open |
| BHU | 10 × CGPA − 4.5 | 75.50% | Open |
| SIU | CGPA × 10 | 80.00% | Open |
| GNDU | CGPA × 10 | 80.00% | Open |
| GGSIPU | CGPA × 10 | 80.00% | Open |
| OU | (CGPA − 0.5) × 10 | 75.00% | Open |
| JMI | (CGPA − 0.5) × 10 | 75.00% | Open |
| JU | (CGPA − 0.75) × 10 | 72.50% | Open |