NTA calculates the JEE Main percentile using a normalisation process to ensure fairness across different exam shifts. A candidate’s raw marks are compared only with the candidates who appeared in the same session, and the percentile is then calculated based on the number of students who scored equal to or less than that candidate. The formula used is: Percentile Score = (Number of candidates in the session with raw score equal to or less than the candidate ÷ Total number of candidates in that session) × 100. This means the percentile reflects relative performance, not actual percentage marks, and helps adjust for variations in difficulty across shifts.
Once the candidates get their percentile score, they can check their expected rank with JEE Mains rank predictor tool. The rank predictor tool uses percentile score to show the expected rank to the candidates which will help them in deciding the probable colleges.
What Is a Percentile Score in JEE Main?
A percentile score in JEE Main represents the percentage of candidates who scored equal to or less than you in the examination. For example, if your percentile is 95, it means you performed better than 95 out of every 100 candidates appeared in that session.
Importantly, the percentile is not the same as percentage marks. A student scoring 120 out of 300 may still hold a high percentile if the majority of candidates scored below 120 in that particular session.
Why NTA Uses Percentile Instead of Raw Scores?
JEE Mains 2026 is conducted in multiple sessions across different days and shifts. Since each session has a different question paper, there is a natural variation in difficulty level. A raw score of 150 in Session 1 may not be directly comparable to a raw score of 150 in Session 2 if one paper was harder than the other.
NTA Calculates uses normalisation through percentile scoring to solve this. This method makes the evaluation fair for every candidate by accounting for the difficulty variation across sessions and shifts.
The JEE Mains Percentile Formula Explained
The JEE Mains percentile formula method used by NTA is:
Percentile Score = 100 × (Number of candidates in the session who scored equal to or less than the candidate ÷ Total number of candidates who appeared in that session)
This percentile reflects a candidate’s relative performance within that session and is used for normalisation across shifts.
Example: Suppose 1,00,000 candidates appeared in a particular JEE Main session, and 92,500 candidates scored equal to or less than a student’s raw marks. Then the percentile will be calculated as:
Percentile Score = 100 × (92,500 ÷ 1,00,000) = 92.5000000
This means the student performed better than 92.5% of the candidates who appeared in that session.
Candidates can use this Percentile score to check their ranks in the JEE Mains Rank Predictor tool.
Important Terms Used in JEE Main Percentile Calculation
Before understanding how NTA determines the JEE Main percentile through the normalisation process, students should become familiar with a few essential terms related to score calculation.
| Key Term | Explanation |
| Percentile / Percentile Score | A percentile score reflects a candidate’s performance relative to others who appeared in the same exam session. It is calculated by converting raw marks into a scale ranging from 0 to 100 based on comparative performance. It should not be confused with percentage marks. |
| Normalisation | Normalisation is the process used to compare candidate performance across multiple exam shifts with varying difficulty levels. It ensures fairness by adjusting scores based on relative performance in each session. |
| Highest Raw Score and Percentile | The candidate(s) with the highest raw marks in a particular session are assigned a percentile score of 100 for that session after normalisation. |
| Lowest Raw Score and Percentile | Candidates with the lowest raw marks receive percentile scores based on the number of candidates in their session. Therefore, the lowest percentile may vary from one session to another. |
How Ties Are Broken in JEE Main Rankings?
When two or more candidates obtain the same overall percentile, NTA applies a tie-breaking process to determine merit order. If the tie still remains unresolved after all criteria, candidates may be assigned the same rank as per NTA policy.
The ranking is decided in the following sequence:
- Higher NTA score in Mathematics
- Higher NTA score in Physics
- Higher NTA score in Chemistry
- Lower ratio of incorrect answers to correct answers across all subjects
- Lower ratio of incorrect answers to correct answers in Mathematics
- Lower ratio of incorrect answers to correct answers in Physics
- Lower ratio of incorrect answers to correct answers in Chemistry
Also Check: JEE Mains Percentile Predictor
Importance of the Normalization Process in JEE Main
The JEE Main exam is conducted in multiple shifts and on different dates, which means candidates receive different question papers. Although NTA follows the same syllabus for all sessions and aims to maintain a similar difficulty level, slight variations in paper toughness may still occur. As a result, some students may face a more challenging paper than others, which can impact their raw scores even if their preparation level is similar.
To ensure fairness, NTA Calculates uses a normalisation process based on percentile scores. This method adjusts for differences in difficulty across sessions so that no candidate gains an unfair advantage or suffers a disadvantage because of their allotted shift. By using normalised percentile scores instead of raw marks alone, NTA is able to assess candidates more equitably and prepare a fair merit list for admissions.
Also check: How to crack JEE 2026
FAQs
Q1. Is JEE Main percentile calculated separately for each session?
Ans: Yes, NTA calculates percentile separately for every JEE Main session or shift. A candidate’s raw marks are compared only with those who appeared in the same session before the final percentile is assigned. This is a key part of how NTA calculates percentile in JEE Main fairly across multiple shifts.
Q2. How can students estimate their percentile before the official result?
Ans. Students can use a JEE Mains Percentile Predictor to estimate their expected percentile based on raw marks and exam shift difficulty. This gives a rough idea of performance before NTA releases the official scorecard.
Q3. Does 100 percentile mean full marks in JEE Main?
Ans. No, scoring 100 percentile does not necessarily mean a candidate achieved full marks. It simply means the student secured the highest normalised score in that particular session.
Q4. Can I calculate the expected JEE Mains rank from the percentile score?
Ans. Candidates can use a JEE Mains Rank Predictor to estimate their probable AIR based on their percentile score. This helps in understanding admission chances for colleges and branches.
Q5. Can two students get the same percentile in JEE Main?
Ans. Yes, two or more candidates can receive the same percentile if their relative performance after normalisation is identical. In such cases, NTA applies tie-breaking rules to determine the final rank.
