For candidates preparing for or analysing JEE Main 2026 performance, understanding the difference between raw marks and percentile scores is crucial. National Testing Agency (NTA) does not use raw marks directly to prepare merit lists because the exam is held in multiple sessions and shifts, each with potential variations in difficulty. Instead, NTA converts raw marks into percentile scores through a normalisation process.
What Are Marks and Percentiles in JEE Main?
Marks refer to the raw score out of 300 obtained by a candidate based on correct and incorrect responses in the exam. Each correct answer carries +4 marks, while incorrect answers usually lead to 1 marks under negative marking. Percentile, on the other hand, reflects a candidate’s relative position among all those appearing in the same session. If a candidate has a 95 percentile, it means they have scored better than 95% of candidates in that session, not that they scored 95 % of the total marks.
Why is Used Instead of Marks?
JEE Main is conducted over different shifts and dates, and not all question papers may have identical difficulty levels. To ensure fairness, NTA applies a normalisation formula, converting raw marks to percentile scores so that candidates from tougher shifts are not disadvantaged.
Percentile calculation formula (simplified):
Percentile score = (Number of candidates who scored equal to or less than you ÷ Total candidates in that session) × 100
The highest scorer in each session receives a percentile close to 100, and other candidates’ percentiles are distributed downwards based on relative performance.
JEE Main 2026 Marks vs Percentile: What Students Should Expect
The exact mapping from marks to percentile changes every year based on overall performance and difficulty levels, but past trends can give rough guidance. In JEE Main 2025, for example, candidates scoring around 180 – 200 marks often achieved percentiles above 99, whereas those with 120 – 140 marks typically fell in the 95 – 97 percentile range. It’s important to note that the same raw marks can yield different percentiles across shifts, depending on how others perform in that particular session. Therefore, a percentile is always a relative metric.
JEEMain 2026: From Percentile to Rank
After percentile scores are calculated for all candidates, NTA prepares the All India Ranks (AIR). Percentile is the primary determinant of rank; the higher the percentile, the better (lower) the rank. This rank plays a key role in JoSAA counselling and admissions to engineering colleges, including NITs, IIITs and GFTIs. In conclusion, while raw marks indicate your direct score in JEE Main, percentile and rank decide your position in the merit list and admission prospects. Understanding how marks translate into percentiles helps candidates estimate their performance and set realistic expectations for the counselling process.
