If you can’t figure it out how to crochet hat in any size you want, this tutorial with lots of helpful charts is great to you understand how to do it.
In this post, we are talking about crocheting any size hat from top to down. How to get exactly crown width, circumference, and length to fit the hat size you want. It’s all about math, but like a magic. Finally, you will get a proper size hat.

I have added hat sizing guide so you do not need to play with math. And lots of step by step photos, infographic.