How many total turns does a normal game of civ have?

There are 650 tunrs in an Epic game.

There are 430 turns in a Normal game.

And there are 295 turns in a Quick game.

Production of everything takes 150% of normal speed in the Epic game wihile it takes 67% in the quick game.

Thanks!

It's good info to know when guesstimating what is best to do for a GP or certain town improvements.