A, B, C … 1, 2, 3. Does finding the right crochet hook size ever make you feel like you’re back in Kindergarten again? I can smell the crayons and feel my scratchy nap-time beach towel beneath me! (PS – who has a Kindergartener that STILL TAKES NAPS?)

You may or may not already know about my mild obsession with crochet hooks. I believe that becoming an expert in understanding crochet hooks is certainly worthy of some type of advanced certification. If you want to consider yourself CERTIFIABLY PRO in the study of the crochet hook, be sure to download my free Ultimate Guide to Crochet Hooks in the Resource Library. You will never have another question about this most revered crochet tool.

But I digress.  Back to our alphabet and numbers.

I’m 99% sure you won’t ever have to take a test on your crochet hook conversion knowledge. But if you ever do, I hope it’s open book. So, I have created a Crochet Hook Size Conversion Chart so you will never have to worry about this again.

This conversion chart includes metric sizes from 0.75 mm through 19.00 mm and includes conversions for METRIC, US, UK and JAPAN. I mean, COME ON – the art of Amigurumi was ROOTED in Japan – they certainly deserve to be represented on a common crochet hook conversion chart. Can I get an AMEN?

I’m sorry if you’re one of the few that uses a crochet hook smaller than 0.75 mm. You have eyes like the owl and you are my hero. I didn’t include those sizes on my chart and they only include 6 hooks sized only for Metric and Japan. Just for you, here they are:

METRIC / JAPAN
0.40mm / 24-lace
0.45mm / 23-lace
0.50mm / 14-lace
0.55mm / 13-lace
0.60mm / 12-lace
0.70mm / 11-lace

You’re welcome.

Click on the image below to download the Crochet Hook Size Conversion Chart quick reference card from our Resource Library and sleep easy tonight.