I’m not really as into the Tumblr Hetalia fandom, so sadly I can’t offer any.  :( 

That saying so, I’m pretty sure an awesome follower or passerby might be able to help.  Reblog with any non-shipping Hetalia blogs you know! Some silly, platonic Hetalia would be nice, but any non-shipping stuff, will be good! 

I might even make a list featuring those blogs for those of you who want a blog with non-shipping Hetalia stuff.  :)

I actually did an analysis of this when I first got into the FFXV fandom, friendo~ c: You can read it here!

But in my estimation, he’s not quite as tall as Gladiolus, who stands canologically at 6′6″; he’s taller than Ignis by a bit, with Ignis being about 6′0″; and he appears to be in very close height approximations to Ardyn, who’s about 6′3″. c: So I can give a close estimation that Ravus is about 6′2″ to 6′4″.