How To Calculate Percentile In JEE Main

Do you know that a high score does not guarantee a high percentile? Two students scored 200 marks, yet one of them had a higher percentile than the other! It might not sound fair, but the reasoning behind it is just simple maths of percentiles and raw scores. This is because of the percentile system.

Our mentors have observed that most new aspirants are confused between percentiles and percentages. At Matrix, we use percentile-based mocks to educate students about percentile calculation. From what raw scores are, how they are calculated, and converted into percentiles. Let us understand these in detail. We will also use a hypothetical example to understand the official NTA formula.

What is the JEE Main Percentile?

A percentile basically is a representation of the candidate’s relative performance compared to others who appeared for the exam. Your JEE percentile shows the percentage of candidates who scored equal to or below your score.

Example: A 95%ile means that the candidate scored better than 95% of the other candidates.

You must be wondering why NTA allows percentiles and not scores?
NTA (National Testing Agency) uses percentiles rather than scores to ensure fairness across multiple exam sessions.

Quick Glossary Table On Key Terms Every JEE Aspirant Should Know (Marks, Percentiles, Scores, Rank)

Aspirants often get confused between certain terms when discussing the JEE percentile. Terms like rank, percentiles, percentages, and NTA score. These key terms are interrelated, but they have different definitions. At Matrix JEE Academy, our teachers educate the aspirants early on about these terms to avoid any confusion later.

Key Term	Meaning
Raw score or marks	The JEE exam is of 300 marks, and the raw score is the total score obtained by the candidate out of 300.
Percentile	The percentage of candidates who scored equal to or below the score.
Rank	Rank is the position of the candidate based on the performance of all candidates and the NTA score.
NTA score	It is the official term for percentile score, which means the normalised percentiles of all subjects.
Normalisation	It is a process used by NTA to ensure fair evaluation from different exam shifts with varying difficulties. This process ensures that the student who scored less in the more difficult exam is not at a disadvantage to the student who scored more in an easier exam shift.
Highest raw score	The top marks scored out of 300, which will be normalized to 100 percentile.
Lowest raw score	The lowest marks scored out of 300 will serve as the baseline for percentile calculation.
Tie-breaking	Process to determine a unique rank when two candidates end up having the same percentile.
Merit list	The final rank list is prepared based on the percentile scores after normalization and tie-breaking.

Core insights:

• Marks are a reflection of individual performance. A high raw score does not indicate a higher percentile. That entirely depends on the overall performance of all candidates in the shift.

For example: In the January shift of JEE Main 2025, a student of Matrix scored 260 marks in Session 1 (24th January, evening shift) and another student scored 214 marks, but in the 28th January session 1 morning shift. But both students scored 99.9 percentile even though the raw scores differed.

• The final merit list is prepared after the normalization process and tie-breaking to ensure all students have been fairly evaluated.
• Even a small score difference can mean big percentile gaps.

Advice from Mr. Narendra Kok (Our top JEE mentor): His advice to students is to focus on accuracy in the right attempts rather than chasing unrealistic raw marks. Let us understand this with an example:

Shivam attempts 70 questions with 55 correct attempts (79% accuracy). Arya attempts 90 questions with 60 correct answers (67% accuracy). Shivam scored 205 marks, whereas Arya scored 210 marks. Despite Arya (97.8%ile) scoring higher marks, Shivam will get a better percentile (98.7%ile). This is because Shivam has higher accuracy compared to Arya. Hence, accuracy pays more than over attempts.

How NTA Calculates JEE Percentile with Examples (Step-by-Step Guide)?

NTA (National Testing Agency) is the authority that conducts the JEE exam and computes the scores and percentiles. Matrix JEE Academy teachers discuss these steps during the classroom sessions to help students understand the dynamics behind the JEE percentile calculator. As this also helps with predicting next year’s percentiles.

NTA formula to calculate JEE Main percentile:

Let,
m = Number of candidates who appeared from the session with the raw score equal to or less than the score of the candidate.
N = Total number of candidates who appeared in the session.
T = Given candidate’s score.

Percentile (P)= 100 × (m​/N)

(or)

Percentile Score (NTA Score) = 100 × ([Number of candidates who appeared in the session with raw score ≤ score (T)] / [Total number of candidates who appeared in that session​])

Let us walk through a step-by-step process of how NTA calculates percentiles after the exam:

1. Finding out the session and the number of candidates who took the exam. As of 2025, JEE Main session 1  was conducted in 10 shifts across 5 days.
2. All the raw marks of the candidates are arranged in descending order so that the highest raw mark comes at the top.
3. The above formula can be used to calculate the percentile from total marks (Maths, Physics, Chemistry) and also for each subject. First, calculate the individual subject percentile and then proceed to calculate the total percentile in the respective shift.
4. The Process of Normalization in JEE Main: The next step is to use normalization across sessions. Since we are not using raw scores but percentiles, which are based on relative performance, they can be combined for normalisation. After the mock sessions in Matrix JEE Academy, we emphasize percentile calculation from marks so that students get used to the system.

Illustrated Example (Hypothetical):

Let us take a hypothetical example to understand this better. Let us imagine, JEE Main took place in 5 shifts. The data is represented below:

Shift	Total candidates	Raw score of candidate (out of 300)	Number of candidates who scored below or equal to T
Shift 1	12,500	240	11,500
Shift 2	18,000	250	16,500
Shift 3	22,000	260	20,900
Shift 4	15,500	270	14,800
Shift 5	20,000	280	19,600

Calculating percentile for each shift:

Percentile = 100 × [Number of candidates who appeared in the session with raw score ≤ score (T)]/(Total number of candidates who appeared in that session​)

Candidate	Shift	Raw Score	Percentile
A	1	240	11,500 * 100 = 92.0%ile12,500
B	2	250	16,500 * 100 = 91.7%ile18,000
C	3	260	20,900 * 100 = 95.0%ile22,000
D	4	270	14,800 * 100 = 95.5%ile15,500
E	5	280	19,600 * 100 = 98.0%ile20,000

We have the percentile for the given candidates for each shift. Now, let us understand how these percentiles are normalised.

Normalization of the percentiles derived:

In the above hypothetical example, there are 5 shifts. The difficulty and overall performance will vary across all 5 shifts. According to the difficulty level, the percentiles are adjusted.

Candidate	Shift	Raw score	Shift percentile	Normalized percentile (NTA Score)
A	1	240	92.0	92.5
B	2	250	91.7	93.0
C	3	260	95.0	95.5
D	4	270	95.5	96.0
E	5	280	98.0	98.0

Key insights from the above table:

• Candidate B has a raw score of 250, and Candidate A has a score of 240. Despite having a higher raw score, the shift percentile is lower compared to candidate A. We can conclude that shift 2 was tougher than shift 1. Hence, the percentile was normalised to be higher for candidate B.
• From the above data, it can be concluded that shift 2 was the most difficult and shift 5 was the easiest.
• For fair results, NTA practices normalization as explained. In tougher shifts, candidates end up having a low percentile despite scoring high. To compensate for this difference, the percentile is normalised for fairness.

Here is the official JEE percentile calculation given in a PDF format by NTA – Official NTA percentile calculation PDF.

JEE Main Percentile Vs Marks Table (Updated)

Curious about the marks vs percentile data for JEE Main 2025? Previous exam data gives a rough estimate of what percentile to expect at a given score. The table below is the updated JEE Main 2025 marks vs percentile data for reference:

Marks (JEE Main 2025)	Percentiles(JEE Main 2025)
300-281	100 – 99.99989145
271-280	99.994681 – 99.997394
263-270	99.990990 – 99.994029
250 – 262	99.977205 – 99.988819
241 -250	99.960163 – 99.975034
231 -240	99.934980 – 99.956364
221-230	99.901113 – 99.928901
211-220	99.851616 – 99.893732
201 – 210	99.795063 – 99.845212
191 -200	99.710831 – 99.782472
191 -200	99.710831 – 99.782472
181 -190	99.97399 – 99.688579
171-180	99.456939 – 99.573193
161-170	99.272084 – 99.431214
151-160	99.028614 – 99.239737
141 – 150	98.732389 – 98.990296
131 – 140	98.317414 – 98.666935
121 – 130	97.811260 – 98.254132
111 – 120	97.142937 – 97.685672
101 – 110	96.204550 – 96.978272
91-100	94.998594 – 96.064850
81-90	93.471231-94.749479
71-80	91.072128 – 93.152971
61-70	87.512225 – 90.702200
51 – 60	82.016062 – 86.907944
41-50	73.287808 – 80.982153
31-40	58.151490 – 71.302052
21 – 30	37.394529 – 56.569310
20-11	13.495849 – 33.229128
0-10	0.8435177 – 9.6954066

Note: Students can use this table as their personal score-to-percentile guide.

You can refer to this blog for a more detailed analysis on the JEE Main 2025 marks vs percentiles: Percentiles vs rank vs marks 2025

How to Interpret your JEE Main Percentile?

Eagerly waiting for your JEE exam and what percentile you will end up scoring? Students can use their mock scores to interpret what their percentiles mean. This will help in getting an idea of how to interpret your scores after the JEE Main exam.

• If a student scores 97%ile, it does not mean 97 percent. This is a common confusion among students. It simply means the students stand equal to or ahead of 97% of candidates who took the exam.
• A higher percentile means a better relative performance. If a student scores 99.5%ile, it is interpreted as the student standing in the top 0.5% of the candidates who gave that particular shift in the exam.
• Using the percentile, one can determine their rank as well.
• Higher percentile → better relative performance → higher chance for top colleges.

At Matrix JEE Academy, we make sure to discuss percentile interpretations and realistic expectations after the full-length mocks. Our students personally enjoy these sessions, as per the feedback, because they help them to understand where they stand.

How does NTA use the Percentile Scores During the Process of Counselling?

What is the next step NTA takes once the result is declared? NTA first converts these percentiles into ranks in descending order. This is done after combining all sessions through normalisation. Based on this, a merit list is prepared. This merit list is used by JoSAA and CSAB counselling during admissions. Institutes use these ranks to decide the cutoffs, respectively.
Matrix JEE Academy Edge: We encourage students to interpret percentiles after each mock test. Our mentors also guide us to set realistic targets based on their percentiles. We have individual progress counselling sessions to help students build a plan to reach their goal and decide on colleges to target based on performance.

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