There is no single universal formula — every Indian board and university publishes its own. Pick yours below and get the percentage the way your institution calculates it, instantly. 100% free, runs in your browser, nothing is uploaded.
The division shown is indicative only — classification rules differ by university. For job applications, government forms and admissions, attach your university's official conversion certificate; the formula printed on your marksheet is always the final authority.
The same CGPA maps to a different percentage at different universities. This reference table shows the formula each institution is reported to use, with a worked example at 8.0 CGPA. If your marksheet prints a formula, that one wins — universities revise conversion rules between schemes and admission years.
| Board / University | Formula | 8.0 CGPA = | Basis |
|---|---|---|---|
| CBSE (Class 10) | CGPA × 9.5 | 76.0% | Official CBSE formula |
| Anna University | CGPA × 10 | 80.0% | University regulation |
| VTU | (CGPA − 0.75) × 10 | 72.5% | VTU regulations |
| GTU | (CGPA − 0.5) × 10 | 75.0% | GTU Academic Council notification |
| JNTU Hyderabad (R18 & later) | (CGPA − 0.5) × 10 | 75.0% | JNTUH guidelines (older R15/R16: −0.75) |
| AKTU | (CGPA − 0.75) × 10 | 72.5% | AKTU B.Tech Ordinance, 2019–20 |
| Mumbai University (CBCS, 10-pt) | (7.1 × CGPA) + 11 | 67.8% | Most cited; scheme-dependent (see FAQ) |
| Delhi University | CGPA × 9.5 | 76.0% | University default |
| MAKAUT (WBUT) | (CGPA − 0.75) × 10 | 72.5% | University guideline |
The most-searched conversion in India. CBSE derived the 9.5 multiplier from five years of Class 10 results: students scoring 91–100 marks (grade A1, grade point 10) averaged about 95 marks, so 95 ÷ 10 = 9.5.
| CGPA | 10.0 | 9.5 | 9.0 | 8.5 | 8.0 | 7.5 | 7.0 | 6.5 | 6.0 | 5.5 | 5.0 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Percentage | 95.0% | 90.25% | 85.5% | 80.75% | 76.0% | 71.25% | 66.5% | 61.75% | 57.0% | 52.25% | 47.5% |
Each university calibrates its grading scale differently — exam difficulty, grade bands and pass marks all differ. The conversion formula translates that university's relative scale back into an approximate absolute percentage, so the "right" formula is always the one your own institution publishes.
Mumbai University has changed its conversion across schemes: the most widely cited 10-point CBCS formula is (7.1 × CGPA) + 11, while engineering circulars (e.g. Circular No. Exam/Com/97 of 2018) cite 7.25 × CGPA + 11, and NEP 2020 batches use grade-band tables instead of a formula. Check which scheme your admission year falls under — or use the formula printed on your marksheet.
VTU's regulation uses (CGPA − 0.75) × 10. So 8.5 CGPA = (8.5 − 0.75) × 10 = 77.5% — noticeably lower than the 80.75% the CBSE formula would give for the same CGPA.
GTU's Academic Council notification gives (CGPA − 0.5) × 10 (applies to CPI/CGPA). Example: 8.43 → (8.43 − 0.5) × 10 = 79.3%.
For modern regulations (R18, R19, R20, R22): (CGPA − 0.5) × 10. Older R15/R16 batches used (CGPA − 0.75) × 10. JNTU Kakinada and JNTU Anantapur may differ — confirm with your campus.
Because their published formulas genuinely conflict across sources and schemes — for KTU you'll find ×10, ×9.5, (CGPA−0.75)×10 and (10×CGPA)−2.5 all cited; for SPPU you'll find ×8.9, ×9.5 and (CGPA−0.75)×10. Rather than guess, use the formula printed on your marksheet or ask your examination cell.
There is no official one-step conversion. A rough notional mapping is (CGPA ÷ 10) × 4 — e.g. 8.5 CGPA ≈ 3.4. Credential evaluators like WES use their own methods, and each US university sets its own requirement, so always check the target institution.
Most private employers accept a conversion done with your university's official formula, and many ask for both CGPA and percentage on the resume. Government jobs and some PSUs may require the university-issued conversion certificate.