Changing your email is typically not a huge deal, but when it comes to Facebook, it's a bit more complex because your e-mail address is also your Facebook login mail ID. You can change your login mail ID on Facebook by navigating to the Facebook settings page and validating your brand-new email address.
How To Change Email On Facebook
1. Browse to Facebook.com and log in to your Facebook account
2. Click the "Account" button on top right corner of the screen. Click "Account Settings."
3. Scroll down to your email address and click the "Edit" icon.
4. Click "Include another e-mail."
5. Enter your new e-mail address into the "Email" field and click "Conserve Changes."
6. Input your Facebook password when prompted to validate the modifications.
7. Log in to your email account and open the verification message from Facebook. Click the "Verify" button within the message.
8. Click "Account," then "Account Settings." Click "Edit" next to "Email." Click the "Get rid of" button for your old email address to finish the process of changing your login mail ID on Facebook.
And one more thing please don’t forget to share this awesome trick to use the How To Change Email On Facebook with your friends.