Boye has a large range of crochet hooks, made of many materials and options, in various sizes. I created this post of what sizes are available in each product line of Boye crochet hooks. I’ve provided a handy conversion chart and downloadable PDF for easy reference.
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I reviewed, fact checked and updated this post on April 7, 2023.
Table Of Contents
- Crochet Hook Sizes
- Boye Crochet Hooks Size Chart
- Aluminum Crochet Hooks Sizes Boye
- Red Boye Crochet Hooks Sizes
- Boye Steel Crochet Hook Size Chart
Crochet Hook Sizes
First, here’s some information about crochet hook sizing and converting between the different size systems. There are three systems, Metric (AUS/NZ), the US, and UK/Canada.
For more, visit my post on crochet hook sizes here.
These Boye crochet tapered hooks are favored by many crocheters who like a tapered hook. They can be found as singles or as a crochet hook set but without a case.
Boye Crochet Hooks Size Chart
Note: This sizing applies to the plastic and Tunisian range.
| US | UK | Metric |
|---|---|---|
| B / 1 | 13 | 2.25mm |
| C / 2 | 11 | 2.75mm |
| D / 3 | 10 | 3.25mm |
| E / 4 | – | 3.5mm |
| G / 6 | 8 | 4.25mm |
| H / 8 | 6 | 5mm |
| I / 9 | 5 | 5.25mm |
| J / 10 | 4 | 5.75mm |
| K / 10.5 | 3 | 6.5mm |
| N / 15 | 000 | 10mm |
| P / 16 | – | 11mm |
| Q | – | 16mm |
| S | – | 19mm |
Aluminum Crochet Hooks Sizes Boye
Here is a sizing guide for quality Boye aluminum crochet hooks. Note: This also applies to the ergonomic range.
| US | UK | Metric |
|---|---|---|
| B / 1 | 13 | 2.25mm |
| C / 2 | 11 | 2.75mm |
| D / 3 | 10 | 3.25mm |
| E / 4 | – | 3.5mm |
| G / 6 | 8 | 4.25mm |
| H / 8 | 6 | 5mm |
| I / 9 | 5 | 5.25mm |
| J / 10 | 4 | 5.75mm |
| K / 10.5 | 3 | 6.5mm |
| N / 15 | 000 | 10mm |
| P / 16 | – | 11.5mm |
| Q | – | 16mm |
| S | – | 19mm |
Red Boye Crochet Hooks Sizes
The red Boye crochet hook is size F in US Sizing or 4mm in Metric sizing.
Boye Steel Crochet Hook Size Chart
Steel crochet hooks are smaller and finer, used for crocheting intricate designs or lace with crochet thread.
| Metric | US |
|---|---|
| 3.5mm | 00 |
| 3.25mm | 0 |
| 2.75mm | 1 |
| 2.55mm | 0 |
| 2.2 mm | 2 |
| 2.1mm | 3 |
| 2mm | 4 |
| 1.9mm | 5 |
| 1.8mm | 6 |
| 1.65mm | 7 |
| 1.5mm | 8/7/2 |
| 1.4mm | 9/8 |
| 1.3mm | 10 |
| 1.1mm | 11 |
| 1mm | 12/6 |
| 0.85mm | 13 |
| 0.75mm | 14/10 |
Conclusion
Boye crochet hooks are excellent for beginners. They’re affordable, lightweight, comfortable, and widely available. Do you use Boye hooks? If so, what do you like about them? I’d be interested to hear your thoughts.
Pin For Later
I have the boye ergonomic set but I think a couple are missing or mislabeled or something because I have a 4.25 mm and a 3.75 mm but I don’t have a four. They’re not have a 5.25 mm and a 5.75 mm but I don’t have a five or a six then I have a 6.5 mmso I think they are either mislabeled or I am missing three out of the set I bought because I don’t find that correctly on the conversion chart. If you could tell me the correct conversions I would greatly appreciate it.
Hi Charity. Can you please send me a link of the set you purchased. I have seen other crocheters comment that the sizing of some sets are not labelled correctly. Cheers Jodie.
Could you add the color to your charts? My sizes have all worn off
Hi Lisa. Thanks for you message. I will work on that. I’d recommend getting a needle/hook gauge and then you can be sure that you know which size hook you are using. Cheers Jodie
Where do I find the size of my ergonomic crochet hook. The handle is yellow
Hi Carla. I’d highly recommend getting a needle/hook gauge to double check the size of your hook or use a measuring tape and measure the diameter. Line up the edge of the hook with beginning of the long bar of the metric sizing. So start off at the 2cm mark. Then count how many smaller bars there are (they are each a mm) to the other edge of your hook. This won’t be exact but it will be very close to what the diameter of your hook is in mm. Cheers Jodie
Jodie
I have a Boye crochet hook that is labeled J/10-5.75 mm but I don’t see it on any of the charts that are posted here. Does that mean that this hook is missed labeled?
Hi Kathleen. I’ve done some research and I’ve found a listing that identifies the Boye Hook as J/5.75mm. I’ve read that hooks can be mislabeled. The best way to check the size of your hook is to use a crochet hook/knitting needle gauge. If there is a little room left when you place it in the 6mm hole, then you would assume it is 5.75mm. If it fits perfectly then it is 6mm. Hope that helps.
Hi Jodie! I have a boye plastic crochet hook that is light grey/blue and is labeled S 19-19.00mm. I picked it up on a clearance sale at Walmart nearly 10 years ago.
Thanks for sharing Sara. I will update my post reflecting this size. I’ve done some research and see that some stores still stock this hook. Thanks for your help. Cheers Jodie
Hello, I have been a Boye user for more than 40 years and the H-5 mm was my standby. However my collection has a gold, 9.0mm labeled N. I have moved into larger bulky yarn and am trying to get custom hooks with Boye heads so I’m trying to find out the larger sizing. Any help would be appreciated.
Hi Sugar. Thanks for getting in touch. Do you have a preferred larger bulky yarn? Often on the label of the yarn it will say what hook size to use with that yarn. On the Craft Yarn Council chart the range of hook sizes for bulky yarn is 6.5mm to 9.0mm. Super bulky 9.0mm – 15.0mm. If you are getting custom hooks with Boye Heads hopefully they could make you say a 10.0mm, 10.5mm. Hope this helps. Cheers Jodie
I am so confused!! I don’t know if I’m reading English or Spanish on these numbers sizes letters. Why can’t it be all just one number or all just one letter?
I’m being told to start with a 5.5 then change to a 6!
I’m assuming H is a 5 and 6 is an I. Is that anywhere correct? Lol
Hi Rachel. Your confusion is understandable. I assume the 5.5 and 6 refer to the metric sizing, so 5.5mm and 6.0mm. Many crocheters prefer the millimeter sizing because brands can differ with their corresponding letter. The closest Boye sizes are I at 5.25mm and J 5.75mm. Using hooks slightly larger or smaller will change the size of your stitches but also how tight you crochet will affect the size of your stitches. I always recommend doing a swatch with a new pattern to see if the sizes of hooks you are being told to use, matches what the pattern gauge is.
Hi I’m trying crochet the micro flowers. I can’t seem to find 5mm in steel hook. A lot of the tutorials on micro flowers use .5mm. What is the next size I can use to get the same results. I just bought 1.00mm Boyd crochet hook.
Would appreciate your help.
Thank You
Hi Liz. The Clover Soft Touch 0.5mm would be a good alternative to a Boye Hook. The Soft Touch handle is comfortable and with such fine work, it could mean you are able to crochet for more time. https://amzn.to/3JfBztD As you have the 1.00mm Boye crochet hook, I would test the micro flowers using that hook and see what results you get. The stitches will be a little larger but perhaps not noticeably so. Let me know how you get on. Cheers Jodie
where can i buy size 13 metal crochet hooks? I use them for beading on knit items.
Hi CK. I’ve done a bit of research and found a listing on Etsy for vintage Boye Steel hooks mentioning size 13 here – https://tidd.ly/3YoxidD Cheers Jodie
Hello, I have a Boye Interchangeable set of smaller hooks that I use for thread crochet, i.e. doilies and filet usually on size 10 thread. The finish is tarnished on the hook ‘heads’ I typically use. How do I clean them as well as my favorite stainless steel hooks I’ve collected/inherited over the years? Thanks in advance.
Hi Cindy. That’s a great question!
I went ahead and did some more research about cleaning steel hooks and ended up writing a post for you. If you search in the top section menu bar on Crochet Penguin for How To Clean Crochet Hooks, all the information for how to clean steel hooks is there.
Hope you find the section on cleaning steel hooks helpful. Let me know how you get on and I’d love to see some before and after pictures.
Cheers Jodie 🙂
Hi, I just purchased a Boye set of hooks and it is missing the “7”. I have a pattern calling for that size… Does Boye make them or do I have to switch brands. And if they do make them, why would they not be included?
Thank you!
Kelli
Hi Kelli. Boye sets don’t normally include Size 7 (4.5mm) the closest is their G hook at 4.25mm. I’d recommend doing a swatch with the G hook from your set and see if you reach the pattern gauge, and you could test your gauge with the H (5mm) hook from your set also. Otherwise you’ll want to get Size 7/4.5mm hook from another brand. Happy crocheting! Cheers Jodie
I have a 50 year old red Boye G, it is so old and loved that you can’t read what is on the hook. I love this hook. I have tried others and so far nothing compares to the one I have. I think I would just die if something happened to it. Just wanted to share. Marilynn Crossville Tennessee
Hi Marilynn. A treasured hook to be sure! How wonderful that your Boye hook has served you so well for so many years. Thanks so much for sharing. I’m sure my readers will love this. Cheers Jodie 🙂