I am knitting a baby sweater and think the sleeves are too long - what is the sleeve length for a 2T??
Maybe this will help. http://www.fibergypsy.com/common/children.shtml
If it's to fit longer you could have them roll/fold up so they wouldn't get too short though.
For a size 2, probably about 10" but it's better to have the sleeves too long than too short; you can turn them up and the child can wear the sweater longer.