Hello Aspirant,

See your overall percentile of JEE-Main cannot be calculated from the separate percentiles of the three subjects. Let me explain you, why. See percentile is simply the percentage of students scoring equal to or less than the score that you have scored in JEE-Main and this criteria is implied for each of the three subjects as well as for overall percentile. So as you have scored 92 percentile in Physics, which means that 92% students have scored either less than or equal to you in Physics part of JEE-Main 2021. From the data given by you it is not there that how much marks in total you got and your overall percentile and rank will only be decided on the basis of what marks have you achieved as per the answer key of JEE-Main 2021.

However you can check out marks Vs CRL ranks Vs Percentile from the link given below :-

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

Or

You can also use JEE-Main Rank Predictor to predict your rank :-

You can use JEE-Main College Predictor to predict your chances of admission in different engineering colleges of India on the basis of your JEE-Main 2021 result :-

https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer

I hope this information helps you.

Good Luck!!