Assuming you're referring to the JEE Main exam, here's a rough estimate of the percentile based on your score:

JEE Main Percentile Estimate

- Score: 180 marks

- Estimated Percentile: Around 99-99.5 percentile (based on previous year's data)

Keep in mind that the actual percentile might vary depending on the specific exam session, the number of students who appeared, and the overall performance.

For a more accurate estimate, you can check the official JEE Main website.