I refer to this chart A LOT! You’ll hear me mention it in videos; you’ll see it included in some of my patterns and I often refer to it when I’m working on a hat! The actual info in the chart came from a blog called Slugs on the Refrigerator but it’s not available in its original form. (Looks like the website was redesigned and the chart lost it’s formatting.) Just for convenience, I put it back into an easy-to-read table below.
Have trouble printing from this site? Download the hat-sizing-chart here.
|Age||Head Size||Hat Size||Hat Height||Flat Circle Diameter|
|0-6 months||13 – 15 inches||12 -14 inches||4.5 – 5 inches||4 inches|
|6-12 months||16 – 19 inches||14 – 18 inches||5.5 inches||4.5 inches|
|1 – 3 Years||18 – 21 inches||17 – 20 inches||6.5 inches||5.5 inches|
|4+ years||20 – 22 inches||19 – 21 inches||7.5 inches||6 inches|
|Women||22 inches||20 inches||8.5 inches||6.5 inches|
|Men||23 inches||21 inches||9.5 inches||6.75 inches|
NOTE: Flat Circle Diameter measurement is for top-down crochet construction.