How many ships are in starfleet’s fleet ? We never got good numbers so it’s just about speculation. So how big is the mighty starfleet during the dominion war(DS9). Some have said it could be as little as 3,000 and as big as 40,000. What do you think How about during TNG? Post dominion? During TOS ? During DSC and of course how big was the earth starfleet before the (ENT) federation and during the Romulan war.