How to find someones facebook profile id

As present scenario is the time of social networking, Where Social networking comes first name in mind is Facebook. Everyone try to do something innovative with this site. To implement experimental hacks on fb we many times need profile id.
This trick lets you to find anyone's profile id by just knowing their facebook username. Follow the below step by step guide to understand this hack.

Steps: 

• LogIn to facebook, Search username of that person whose profile id you want to know.
• Open his/her profile. 
• Check the link of his/her profile carefully.

• The highlighted numbers is profile id for that username.
• Some people set their custom username so their profile id is not shown in link.
• Here is an alternate method for this.
• Go to the profile you want to find Profile ID
• That URL will look like this www.facebook.com/username
• Change that URL to graph.facebook.com/username
• Then you will get something like below image.

• The highlighted number in above screen shot is actual profile id.

Bhuvan Arora