There may be many reasons for deleting your Facebook account. One of them is that you aren't using your account for any other reason, so let's get right to the tutorial.
1) Open the Facebook app from the apps drawer.
2) Tap on the hamburger menu from the top right corner. In the case of iOS, this might be in the bottom right corner.
How to Delete Facebook Account on Android, iOS.
Make sure you have a proper internet connection before following this tutorial.1) Open the Facebook app from the apps drawer.
2) Tap on the hamburger menu from the top right corner. In the case of iOS, this might be in the bottom right corner.
4) Select Settings and then tap on Account Ownership and Control from your Facebook information tab.
6) From the two options, deactivate and delete select delete, then tap on deleting the account.