Written by ZufishanMS Environmental ScienceLast reviewed
Two formulas, three universities, one change in R23
Jawaharlal Nehru Technological University was split into three universities in 2008: Hyderabad (JNTUH), Kakinada (JNTUK) and Anantapur (JNTUA). Each now writes its own B.Tech regulations. JNTUH defines the percentage equivalent as (CGPA − 0.5) × 10. JNTUK defined it as (CGPA − 0.75) × 10 up to R20, then moved to (CGPA − 0.5) × 10 in R23; JNTUA’s R23 regulations state the same. The 0.25 difference moves every percentage by 2.5 points, which is enough to change eligibility at a 60% or 70% cut-off.
| University | Regulations | Formula | 8.0 CGPA = |
|---|---|---|---|
| JNTU Hyderabad | R16, R18, R22 (clause 11.2); R25 (clause 19.1) | (CGPA − 0.5) × 10 | 75.0% |
| JNTU Kakinada | R16, R19, R20 | (CGPA − 0.75) × 10 | 72.5% |
| JNTU Kakinada | R23 (2023-24 onwards) | (CGPA − 0.5) × 10 | 75.0% |
| JNTU Anantapur | R23 (2023-24 onwards) | (CGPA − 0.5) × 10 | 75.0% |
| JNTU Anantapur | before R23 | Not checked against a JNTUA document; confirm in your regulations | none |
Worked examples: converting JNTU CGPA to percentage
| CGPA | JNTUH, and JNTUK / JNTUA R23 (− 0.5) | JNTUK / JNTUA before R23 (− 0.75) |
|---|---|---|
| 9.5 | 90.0% | 87.5% |
| 9.0 | 85.0% | 82.5% |
| 8.5 | 80.0% | 77.5% |
| 8.0 | 75.0% | 72.5% |
| 7.5 | 70.0% | 67.5% |
| 7.0 | 65.0% | 62.5% |
| 6.5 | 60.0% | 57.5% |
| 6.0 | 55.0% | 52.5% |
The −0.5 column also applies to JNTUK and JNTUA students on R23. Note the 6.5 row: with −0.5 a 6.5 CGPA reaches 60%, a common cut-off in job notifications; with −0.75 it does not. Always convert with your own university’s constant and regulation before deciding whether you qualify.
JNTU 10-point grade scale
Letter grades come from the total of internal and external marks on a 10-point scale. The bands below are JNTUH’s (R22, clause 9.2). JNTUK’s R23 regulations use the same mark bands and grade points with the letters S, A, B, C, D and E instead. Older regulations may use different cut-offs.
| Marks | Grade | Grade points |
|---|---|---|
| 90–100 | O (Outstanding) | 10 |
| 80–89 | A+ (Excellent) | 9 |
| 70–79 | A (Very good) | 8 |
| 60–69 | B+ (Good) | 7 |
| 50–59 | B (Average) | 6 |
| 40–49 | C (Pass) | 5 |
| Below 40 | F (Fail) | 0 |
How CGPA is computed at JNTU
SGPA for a semester is Σ(credits × grade points) ÷ Σ(credits) over the courses in that semester; CGPA applies the same weighting across all semesters. If your memo lists SGPAs but no CGPA, the SGPA to CGPA calculator builds it from the semester figures and credit counts.
How to convert JNTU CGPA to percentage with this calculator
- Select JNTU Hyderabad, or JNTU Kakinada / Anantapur before R23, or R23.
- Enter the CGPA from your consolidated marks memo.
- Read the percentage; the table shows nearby values.
Related calculators
- CGPA to Percentage (India): general, Anna, VTU and Mumbai formulas
- SGPA to CGPA Calculator: combine semester SGPAs into a CGPA
- SGPA to Percentage: convert a single semester result
- Percentage to CGPA: the reverse conversion
Disclaimer: Formulas are taken from the universities’ published B.Tech regulations, checked on 19 September 2026; JNTUA regulations before R23 were not available to check. Confirm with the examination branch before using a converted figure on an official application; a conversion certificate may be required.
Sources
The formula on this page follows the documents below. Confirm any figure that matters with the issuing body or your registrar.
- JNTU Hyderabad: B.Tech R22 academic regulations, clause 11.2 (same in R16 and R18): (final CGPA − 0.5) × 10; checked 19 September 2026
- JNTU Hyderabad: B.Tech R25 academic regulations, clause 19.1: (Final CGPA − 0.5) × 10; checked 19 September 2026
- JNTU Kakinada: B.Tech R20 regulations (approved in Senate, 12 March 2021; archived copy): (CGPA − 0.75) × 10 "as per AICTE regulations"; R16 and R19 state the same; checked 19 September 2026
- JNTU Anantapur: B.Tech R23 regulations, revised 25 June 2025 (archived copy); JNTU Kakinada R23 states the same formula: (CGPA − 0.5) × 10 for students admitted from 2023-24; checked 19 September 2026