Altering your e-mail is usually not a huge deal, however when it pertains to Facebook, it's a bit more complicated since your email address is likewise your Facebook login mail ID. You can change your login mail ID on Facebook by browsing to the Facebook settings page and confirming your new e-mail address.
How To Change Email In Facebook Account
1. Browse to Facebook.com and log in to your Facebook account
2. Click the "Account" button at the leading right corner of the screen. Click "Account Settings."
3. Scroll down to your email address and click the "Edit" icon.
4. Click "Add another e-mail."
5. Enter your new email address into the "Email" field and click "Conserve Changes."
6. Input your Facebook password when prompted to validate the changes.
7. Log in to your e-mail account and open the confirmation message from Facebook. Click the "Verify" button within the message.
8. Click "Account," then "Account Settings." Click "Edit" next to "Email." Click the "Eliminate" 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 In Facebook Account with your friends.