Demystifying the Size Q Crochet Hook

Let me tell you what an adventure it’s been trying to find the right size Q crochet hook. It all started with a blanket pattern that calls for a Q hook. Although I have crochet hook acquisition syndrome, I didn’t have this size in my collection. So, I set out online to find one. Since the Craft Yarn Council represents the leading yarn companies and have set the standards when it comes to crochet hook sizes, we’ll review their crochet hook size chart:

Looks like a size Q crochet hook can either be 15mm, 15.75mm or 16mm. However, a 1mm difference between the various Q hook sizes will affect the overall size of the finished project. So, now we are faced with the question which one is the correct Q crochet hook size to use? Oh, for the love of yarn why give us 3 different options?? Since there are so many options, the correct one to use comes down to what mm size the pattern calls for.

Generally, the 15mm size will be labeled either as a P/Q or Q-19, and here’s a few I found:

Boye and ChiaoGoo are the only two brands I could locate that offer a 15.75mm crochet hook:

Now let’s take a look at the 16mm Q crochet hook. When searching online, there’s way more available than the Q 15.75mm crochet hook. These are two of them you can find, and I prefer the white Susan Bates hook because it’s lightweight with an in-line design making it easy to use.

FAQs about the Q crochet hook sizes:

What crochet hook is 15mm?
A 15mm crochet hook is a size P/Q

What letter is size 15 crochet hook?
The letter size for a 15mm crochet hook is P/Q

What size is a 16mm crochet hook?
A 16mm crochet hook is a size Q

How big is a number 16 hook?
A 16 hook is a size Q

What is the Q crochet hook size in mm?
A Q crochet hook can range in size from 15-16mm. 15mm is known as a P/Q size while 15.75 and 16mm are both called Q. If you’re following a pattern, it’s best to check the mm size to confirm which one to use.

I hope this guide helped you with all your questions you had about the size Q crochet hook.
If not, drop a comment below and let us know!