How Many Characters Can You Have?

[Estellios]

It depends on your subscription. The cheapest one lets you have 1 character per world and 8 characters total. The Standard subscription lets you make up to 8 characters in a single server and allows you up to 40 characters total.

Edit: The FF14 website says that the game time cards give you the Standard subscription for 2 months so you are able to make a max of 8 in a world with up to 40 total.