General rank will be around 25000–27000

OBC(category) rank will be around 5500–6500

If you can go through jee mains previous exam held with same pattern on 2012 you will get rough idea about this year rank.. All the best!!!

It helps you….

Go through the below-provided link to check the answer key of JEE Main 2018:-

Link for all sets question paper and answer key:- https://engineering.careers360.com/articles/jee-main-answer-key

The correct responses in the answer key have to be compared to the response sheet of yours.

You must follow the official marking scheme to calculate your probable scores of JEE Main 2018.

Correct answer:- +4 marks

Wrong answer:- -1 mark

If you have calculated your JEE Main scores, go through the Carers360 rank predict to predict your ranks.

Link to the page:- https://engineering.careers360.com/-articles/jee-main-rank-predictor

( However, You have to remember that the data may not be completely correct in nature. )

All the very best and good luck.

Your expected Rank based on your score will be approximately between 41000 - 46000. Also, You can register for B.tech companion to know your chances in NITs/IIITs with previous year cut off by below link:
https://www.careers360.com/btech-companion

Good Luck!