Yes, you can transfer accounts from one email address to another! On the user account settings page at https://www.khanacademy.org/settings, you can add email addresses to your Khan Academy account. To change your email address, add the new email address, select it from the "Email" dropdown at the top of the page, then remove the old address.
You can log into Khan Academy using a Khan Academy password any Google or Facebook account connected to any of the email addresses on your Khan Academy account. If you're having trouble logging in, go to https://www.khanacademy.org/forgotpw to reset your password.
Unfortunately, combining nor dividing two accounts is not possible; if you would like to change your email address to an address associated with a different Khan Academy account, you need to first log into that account and delete it or change its email address.
- Can I change my login account?