just as some advice depending on the model skate determines the sizing.
razor skates- run true size, so get the same size as your shoe.
valo skates- 1 to 1/2 too small, get a half to a full size bigger than your shoe.
rollerblade - true size
remz - 1/2 size small, dont suggest getting remz if you are a skier. shits way too flexy.
usd - run 1 size small, upsize from your shoe.
nimh - run 1/2 small
and xsjado run true size.
if you can find a pair id stick with razors ive skated a bunch of diff models, valo comes in a close second.
also if you have no luck here try this forum, but be careful cause i havnt been lurking it much lately dont know if its full of trolls trying to scam you.
http://www.aggressiveskateforum.com/forums/index.php?s=3c86e70764526fc2bb072bc68548cc2b&showforum=6