Toddler shoe sizes

I know that women's shoes are sized differently here than in the US.  Are toddler shoes sized differently?  When we moved, my daughter was wearing size 7 shoes that I bought in the US.  She started complaining that they hurt her toes, so I had her measured in a shoe store here.  They said that she measured at a 6 1/2, but that I could buy size 7s.  Any ideas?

yes, they are about a size different.  US sizes are bigger.

The 2 biggest brands here, Clarks and Start Rite, aren't even the same.  I can't remember which way round it is now but there's a good half size between them in the toddler ranges.

Start Right is about half a size bigger than Clarks.

Start Rite also makes narrower widths than Clark's.  Aillidh has a 'D' width foot.  Kickers and Start Rite are the only brands that fit her properly.   :\\\'(

Thanks for the responses.  This is just annoying!  I can understand the difference in women's sizes, because the numbers are totally different.  But to have the sizes in toddler's shoes so close.... 

Start Rite also makes narrower widths than Clark's. 

That is good information to know as our oldest has a narrow foot with an even narrower heel.  She should (hopefully) be getting her orthotics soon and I am going to have to find a pair of shoes that she can wear with them. 
I've been taking her to Clarks, but I'll give Start Rite a go.
thanks Expat!!