Have done my own research but it seems like a man's length from his wrist to the end of his middle finger is a good gauge.
Uh, I dunno, but I'm no expert on the matter, due to lack of observation.
The length from franksolich's wrist to the end of his middle finger is pretty long.
I've also heard that the size of a man's nose tells.
franksolich owns a larger-than-average nose, but not grotesquely so; no need for a nose job.