http://www.alpinist.com/p/online/grades

NCCS = National Climbing Classification System (USA)

This is the mvs page Borut was referring to:
http://www.summitpost.org/handy-alpine-grade-facts/173430
From the point of view of someone who mostly scrambles at the lower grades, it's great because it's one of the few comparisons that correctly equates the lower UIAA grades to the YDS classes (e.g., UIAA II = YDS Class 4).
Borut is surely right that after you do the translation, the result goes under "Difficulty", and if you don't translate, the UIAA number still goes under "Difficulty", not "Grade."

borutbk wrote:Thanks for the Thanks, Kamil!

First of all - Borut, thanks for bringing this point to attention
I've also noticed that us Europeans often get confused by this 'grade' thing and on our route pages we put the UIAA technical difficulty there. I've only avoided this mistake thanks to our Michael mvs