You won't find any automated way to delete a Roblox account on its website. Use one of the 3 methods listed in the post to delete Roblox.

You can delete a Roblox account by simply emailing the company, but there are a few other ways to do it.

Email support The first and easiest way to delete your Roblox account is to email its support staff at info@roblox.com and request that it be deleted.