NTA Scores are given in percentile.
Percentile is calculated by the ratio of the number of values to the total number of values . You cant say/depict your actual score/rank from your percentile neither can you calculate it by only marks. To calculate the actual score/rank/percentile you would need to know the number of students who appeared in the examination and the highest score, average cut offs and the highest score. while as marks are calculated based on the right questions you have attempted, out of the total marks you have obtained for the right number of questions marks from wrong questions marked are deducted from the total.

NTA announces the result of JEE Main/Advance in the form of a percentile score in every attempt or exam of JEE Main/Advance. The All India Rank (AIR) of candidates in JEE Main is calculated by taking the best score out of four attempts and are provided after the result of fourth exam. Candidates are able to check the detailed marks vs ranks of JEE Main/Advance after the conclusion of the exam.

Two types of ranks are given at the end:

1. AIR: All India Rank
2. CR: Category Rank

AIR is the overall rank obtained by the candidate respective of their category and CR is the rank candidates got in their respective category (General/EWS/SC/ST).

Hello Rohit Rai,

Although NTA(National Testing Agency) which conducts the JEE  mains exam introduced normalisation but, it didnot specified the way it follows for the normalisation. but, based on the previous years the expected percentage for the marks>70 is:

for marks between 58 to 67 the percentage would be:82.6 to 87.3

and for the marks between the 68 to 77 would be 87.3 to 90.4.

here is the link for your reference:

https://engineering.careers360.com/articles/jee-main-marks-vs-percentile

Dear Aspirant,

Nta calculates percentile by normalization procedure this year trend can change because of change in no of question.

As from 2019 Jee mains trend marks vs percentile -

78-87Marks -92.61 to 90.64
77-68 Marks-90.42-87.34
67-58 Marks-87.34-82.68

If you want to know marks vs Percentile then you can visit the link mentioned below

https://engineering.careers360.com/articles/jee-main-marks-vs-percentile/amp

Thanks
All the very best

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