I'm 6'2" and I wear 60" ties from Hober. That's probably a little longer than I really need, but you'll probably want at least 58" or 59". Be aware that grenadines will stretch a little over time, but by less than an inch. Edit: And a 3" tie that long will look way skinny. 3.5" is a safe choice, I'm a big guy so I do 3.75" in width. It doesn't need to match your lapels exactly, but it should be close.