Overview
This article will help you to sign in to multiple Gmail accounts at one time.
Instructions
- Sign in at gmail.com
- Click your name or email address at the top right of the page.

- Select Add account from the drop-down menu.

- Log in with the email address and password for the new account you wish to access, then click Sign in.
Switching Between Accounts
Once you're signed in to multiple accounts in the same browser, switching accounts is as simple as adding a new account. Click your name or email address at the top right and you will now see all accounts listed under the current account. Simply click on any of these accounts to access the associated mailbox.
Additional Information
Google support documentation is available for this feature