I did a bunch of climbing at the gym tonight- here's how much.
The walls are 35ft. (420 inches) I'm 6'3" (75 inches) So from top to bottom for me, that's 345 inches, or 28'9" I did that 41 times on the auto-belays, so that's 14145 inches, or 1178 feet, 2 inches.
Needless to say, my arms are kinda tired. But not as tired as I thought they would be, which is good I guess.