JNTUK publishes its own conversion formula, and it is not the same as JNTUH’s or JNTUA’s. Under the R23 regulations it is (CGPA − 0.5) × 10, stated in the Grading section as “CGPA to Percentage conversion Formula – (CGPA – 0.5) x 10”.
These figures are for R23. JNTUK’s earlier R20 regulation uses a different conversion (0.75 rather than 0.5) and a different grade table, so check which regulation your batch is under before using this page.
Source: JNTUK B.Tech R23 Academic Regulations (official PDF) . Quoted from the Grading section (clause 19) of the JNTUK B.Tech R23 Academic Regulations: “CGPA to Percentage conversion Formula – (CGPA – 0.5) x 10”. Checked 23 August 2026. Always confirm against your own marks memo before using this on an application.
| Grade | Grade points | Marks range |
|---|---|---|
| S | 10 | 90% and above |
| A | 9 | 80% to 89% |
| B | 8 | 70% to 79% |
| C | 7 | 60% to 69% |
| D | 6 | 50% to 59% |
| E | 5 | 40% to 49% |
| F | 0 | Below 40% (Fail) |
| Ab | 0 | Absent |
Promotion: JNTUK states a percentage, not a fixed number
This is where most JNTUK students get bad information. JNTUH publishes fixed thresholds — 48 credits out of 80, and so on. JNTUK R23 does not. Clause 18 requires 40% of the credits studied up to that point, with any decimal fraction rounded down.
So any “you need 32 of 80” figure you find for JNTUK is somebody’s arithmetic on an assumed curriculum, not a published threshold. The calculator below asks how many credits your curriculum actually offered, because that is the only honest way to answer it.
| Promotion | Requirement | Of what |
|---|---|---|
| 1st year → 2nd year | No credit requirement | no credit requirement — attendance only |
| 2nd year → 3rd year | 40% of the credits | the credits studied up to III semester |
| 3rd year → 4th year | 40% of the credits | the credits studied up to V semester |
Source: JNTUK B.Tech R23 Academic Regulations (official PDF). Clause 18 (Promotion Rules) of the JNTUK B.Tech R23 Academic Regulations. Decimal fractions are rounded DOWN. Checked 23 August 2026.
Two things this cannot tell you. Credits count only once you have secured them, so a subject you are still carrying as a backlog does not count until you clear it. And universities have relaxed these thresholds for particular academic years before — if a circular for your year says otherwise, the circular wins, not this page.
Marks needed in the semester end examination
R23 splits every course 30 internal / 70 end examination. A pass needs at least 35% in the end examination and 40% of the two taken together.
Note what the regulation does not say: there is no separate minimum for the internal marks on their own. A JNTUK student with weak internals is not automatically out of the subject the way a JNTUH student below 14 of 40 would be.
| Grade | Total needed | Exam marks needed |
|---|
Source: JNTUK B.Tech R23 Academic Regulations (official PDF) . Clause 9 (Evaluation Process) of the JNTUK B.Tech R23 Academic Regulations: not less than 35% in the end examination and 40% in the sum of internal and end examination marks. Checked 23 August 2026.
Two things worth knowing before you plan around this. The exam minimum is a floor that does not move — strong internals reduce what you need only until they hit it, never below it. And note what this regulation does not say: it sets no separate minimum for the internal marks on their own, so low internals here do not end the subject the way they would at a university that sets one. Only the exam minimum and the combined total apply.
Attendance under R23
Two conditions, and students usually only remember one: 75% in aggregate across all subjects, and 40% in each individual subject.
Source: JNTUK B.Tech R23 Academic Regulations (official PDF) . Clause 17 (Attendance Requirements) of the JNTUK B.Tech R23 Academic Regulations. R23 also requires a minimum of 40% attendance in each individual subject, on top of the 75% aggregate. Condonation of the aggregate shortage is granted by the College Academic Committee on payment of a stipulated fee, and shortage below 65% “shall in NO CASE be condoned”. Checked 23 August 2026.
Condonation is permission, not a right — where a university offers it at all, it is granted on stated grounds, usually with a fee and an application through your college. Treat the middle band as “ask immediately”, not as “you are fine”.
JNTUK CGPA questions
Is the JNTUK formula the same as JNTUH's?
The R23 formula happens to use the same 0.5 offset that JNTUH R22 uses, but they are separate universities with separate regulations, and the rest of the rules are not the same at all. JNTUK grades run S, A, B, C, D, E; JNTUH grades run O, A+, A, B+, B, C. The assessment split is 30/70 at JNTUK and 40/60 at JNTUH. Promotion is a percentage at JNTUK and a fixed credit count at JNTUH. Never carry a number from one to the other.
What if I am under R20 rather than R23?
R20 uses a different conversion — an offset of 0.75 rather than 0.5 — and a different grade table with A+ at the top rather than S. This page is R23 only. If your batch is on R20, work from your own regulation document rather than from these figures.
What is 8.4 CGPA in percentage at JNTUK?
Under R23, (8.4 − 0.5) × 10 = 79%. Under R20 the same CGPA gives 76.5%, which is why the regulation year matters more than the arithmetic.
Do I need a minimum in internals to pass at JNTUK?
R23 sets no separate internal minimum. The two conditions are 35% in the end examination and 40% of the internal and end examination marks combined. That is genuinely different from universities that impose an internal floor, and it means low internals can still be recovered by a strong exam.
Can attendance shortage be condoned?
Between 65% and 75% in aggregate, the College Academic Committee may condone the shortage on payment of a stipulated fee. Below 65% the regulation says it shall in no case be condoned. Remember the separate 40% per-subject requirement as well — clearing the aggregate does not clear that.
Where these numbers come from
Everything on this page is taken from the JNTUK B.Tech R23 Academic Regulations, with the clause named beside each figure and the document linked so you can check it yourself. Nothing here is copied from another calculator site.
If you spot a discrepancy against your own copy of the regulation, tell me — corrections are genuinely welcome, and on this subject one wrong number is worse than no page at all.
Related calculators
- CGPA to percentage — the JNTUH version, with its own clause cited
- VTU CGPA to percentage — the 2021 scheme, and why 2022 is different
- Anna University CGPA to percentage
- Backlog planner — the fewest subjects that close a credit gap
- CGPA to GPA — for applications abroad