Wow, I thought he was a big dude, I am taller than him in that case, and I'm 5' 11".
Makes sense though, if you watched him on Leno last night, or the other night at his speech, he and Jay are about the same height. According to IMDB, Jay Leno is 5' 10"
Funny how Hollywood puts a spin on things like that, as if Arnold would have to be over 6 feet tall to be impressive.
It started in his body building career, I think it is kind of like football stats... They make everyone seem bigger so when you look at them on TV you are in awe.