Size is one of those things that is a bit private. Especially as you get older, and for some of us, find out somehow manufacturers have made the sizes smaller :-)
The wife's dress size? Half of men don't have a clue despite buying the lady in their life an item of clothing - Daily Mail
What I have seen is that sizes vary in the US, from style to style, and from manufacturer to manufacturer. So one store's size 6 dress, may be a size 8 or even 10 at another store. It's frustrating! Size charts are one of the big challenges of selling girl's dresses.
What I created was a conversion size chart to help foreign customers:
European to US Kids/Children Size Chart
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