Free Crochet Hat Size Calculator
For Top-Down Hats

Use this Free Crochet Hat Size Calculator to find out the diameter of the circle you need to crochet for a top-down hat or beanie.

Here's how it works:

1. Select the measurement type (either inches or centimeters),
2. Enter the measurement of the head circumference,
3. Click on the "Calculate Hat Size" Button.

And there you have it!

Now you know the diameter you need for your top-down hat. Crochet a flat circle using increases until you reach this diameter, then stop increasing and simply work your rounds either in joined or continuous rounds (spiral).

To find out more information on how to measure other types of crochet hats (Bottom-up or side-to-side hats), you can check out this blog post.

Please let me know if you have any questions in the comments below.

Happy hooking!

May

Bookmark this page so you can find it again easily and share to your social media.