On your computer, sign in to Google. On the top right, select your profile image or initial. On the menu, choose Add account. Follow the instructions to sign in to the account you want to use.

Go to your Google Account. On the left navigation panel, select Security . On the Your devices panel, select Manage all devices. You'll see devices where you're currently signed in to your Google Account or have been in the last few weeks.

See all settings. Click the Accounts and import tab. In the "Check mail from other accounts" section, click Add a mail account. Type the email address of the other account, then click Next.

You can manage all of your Gmail addresses in one place through your Google account, which makes it easy to stay organized. There is a caveat though: You'll be limited to four total Gmail accounts linked to the same phone number. After this point, you'll need to use a different mobile number to open more accounts.