If you do not have a Google Account you'll first need to create one by following the instructions listed here.

Note: If you have a Gmail Account, you already have a Google Account.

First, log in with your Google Account email and password here Under the Member Login section:

1. Enter your existing YouTube Username and Password.
2. Click the “Link Accounts” button.
3. You'll be logged in and redirected to the YouTube homepage.

To see if your accounts are linked, follow the instructions below once you're logged in to YouTube:

1. Click the “My Account” link in the top right.
2. Under Account Settings, if you see the “Unlink YouTube and Google Accounts” link, you've successfully linked your Google Account with your YouTube Account.