To transfer to a different world, go to the character selection screen (using F12 or when you first logon) and select the desired world; you will be logged out while the game makes these changes, which might take 5-30 minutes. You can transfer once every seven days at a cost determined by the destination server population.

    Medium: 500
    High: 1000
    Very High: 1800

The transfer fee is only charged if you have characters on your account; in other words, if your account has no characters or you delete all existing characters first, you will be prompted to select a new home world after creating a new character, free of charge.[1]