I've been talking about hats a lot lately, so I thought I'd share this handy hat sizing list. Even for those of us with kids, sometimes it's hard to remember the average head circumference of a 3 year old.
This list leaves out adults. 21"-23" or 53.5 to 58.5cm is pretty typical. 21" is usually an adult small, 22" a medium, which leaves 23" as a large hat size. This is the kind of information that's nice to keep around when hat making is the order of the day!
*Info for this post comes from Little Lids.