I really didn't see that "intended for adults" thing, but you do bring up a rather good point. I think mostly your finger size is going to correspond to your wrist in the way its intended, or they would also probably say there is a high risk this won't work or not post it on the site at all. (I've heard health professionals tell people to do this test so I quess it's a bit reliable). I feel a little stupid about the adults not children part, but I've used a few adult calculators on me and they seem to work the same as children ones. I think you should try the calculator anyway but just don't take it too literally. Sorry about that mistake. ^_^