How to change Gmail password ?

1. Sign in to Gmail. 
2. Click the gear icon  at the top of any Gmail page, then Mail settings, and open the Accounts and Import tab.
   or
   Click on this link
3. In the 'Change account settings' section, click Change password.
4. In the new window, enter your current password and your new password.

Make sure you create a unique password to help keep someone from breaking in to your account.