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Patterns by Crochet Hook Sizes

Crochet patterns by hook size to help you find your next project!

By: Julia Wiatr, Editor,
Patterns by Crochet Hook Sizes
Patterns by Crochet Hook Sizes

Yarn hooks in the US are marked by letters from B through S, with S being the largest. Smaller hooks exist and are marked by numbers, but those steel hooks are mostly used for very fine yarn and thread, and they won't be covered here. Yarn weights, also, are designated by numbers, and those range from 0 to 6, with 6 being the thickest and 0 being the thinnest. Each yarn weight works the best with a few different hook sizes. 

What’s the best hook size and yarn weight combination? It all depends on what you’re trying to make! If you need help choosing a crochet hook, we have a helpful guide to how to find your best crochet hook size, or you can check the yarn label when buying your yarn. Most labels will list the recommended yarn weight, though you can still switch it up if you tend to crochet tightly or loosely or you're going after a specific effect. If you already have a yarn and hook in hand, then check out the projects that best fit your crochet hook size. 

Patterns by Crochet Hook Sizes

Technically, you can make just about any hook size work with any yarn weight, but there are certain size combinations that work better with each other, as you'll see here in this pattern collection. For instance, a plush winter scarf is made with thicker yarn and a bigger crochet hook, like the Cozy Cowl Poncho Pattern. On the other hand, when you’re working on something delicate, like a lace doily or the Paper Dolls Crochet Shawlette, you wouldn’t want to use anything but very fine lace yarn with a small crochet hook.

B Crochet Hook Size Patterns

B/1 hooks (UK 13, 2.25mm) fall within the range of hook sizes crochets would typically use for any projects using super fine yarn, also known as sock yarn, fingering yarn or baby yarn. These hooks are the smallest hook sizes you can get before going into the steel hooks category for lace yarn and thread. Click for more B crochet hook patterns.

  1. Lace Summer Top with Filet Inserts - Use your smaller crochet hook to make the fine eyelet details in this gorgeous crochet top.

  2. Rosette Flower Necklace - Using crochet thread, work up smaller, delicate details like this crochet flowers in this necklace. 

C Crochet Hook Size Patterns

Projects that use the C hook size, like the B hooks, are typically small and delicate. C/2 hook sizes (2.75mm) are used for projects that require a lot of detailing, like intricate lace designs, or smaller items, like little flowers. You'd also choose to make socks and baby items with this combination of yarn and hook. Click for more C hook size patterns.

  1. Moonlight Market Bag - Crochet bags can be made in all yarn weights and hook sizes, as seen here in this lightweight market bag project. 

  2. Granny Stripe Crochet Scarf - Crochet scarves made in lightweight yarn and smaller hooks can be used to add rows and rows of color and detailed stitches.

D Crochet Hook Size Patterns

D/3 hooks (UK 10, 3.25mm) are still within the range of hook sizes crocheters would use for super fine yarn projects. Click for more D crochet hook patterns.

  1. Fun Multicolor Crochet Sock Pattern - Sockweight yarn and a matching hook are best used, of course, for traditional crochet socks.

  2. Primrose Crochet Blanket - To get the detailing on the crochet flowers and the thin borders for each granny square, a smaller size is best.

E Crochet Hook Size Patterns

E/4 (UK 9, 3.5mm) crochet hooks are at the top of the super fine yarn category but also at the bottom of the fine category, depending on how tightly you want to crochet. Check out some more E crochet hook patterns!

  1. Owl Crochet Baby Booties - Baby booties and baby projects are typically worked up in lighter weight yarn and smaller hooks. While detail can be added to chunky-weight projects, when working on something so small, smaller yarn/hook size is best.

  2. Catherine Cowl - The more rows and color options you want to add to a smaller sized project, like this crochet cowl, the more you want to work it up with a smaller sized hook to prevent it from getting too bulky.

F Crochet Hook Size Patterns

Fine yarn is also known as sports weight yarn or baby yarn, and it's perfect for F/5 (3.75mm) hooks. This yarn has a little bit more to it than super fine yarn, so it would make a good cowl or shawl or even a smaller afghan. Check out some other F crochet hook patterns here.

  1. Paper Dolls Crochet Shawlette - Fine yarn is a little bulkier than the threadlike yarn from above, so it's good for warmer projects like shawls, but it also allows for fine and intricate detailing.

  2. Favorite Style'n Slouch Beanie - Winter wearables made in thinner yarn and smaller hook sizes allow for some warmth without too much bulky, perfect for your everyday items or your transitional weather designs.

G Crochet Hook Size Patterns

G/6 hooks (UK 8, 4.0mm) are ideal for making light-weight projects and accessories for the spring and summer. Check out more of our G crochet hook patterns here.

  1. Double Diamond Baby Blanket - We're still in the range of baby blanket designs, and those made with G hook sizes are a little warmer than previous ones, and still feature intricacies. 

  2. Seriously Striking Crochet Stole - Warm, cozy and intricate describes crochet accessories with this hook and yarn combo. Keep warm but not overwhelmed with these designs.

H Crochet Hook Size Patterns

With the H/8 (UK 6, 5.0mm) crochet hook, we're wandering into the light weight yarn category, also known as DK and light worsted yarn. This yarn has a bit more to it than the fine and super fine yarns, so it would be best for a light cardigan or tee or a breezy springtime shawl. Check out more of our H crochet hook patterns here.

  1. Barcello Jacket - This springtime shrug is the perfect combination of warm and airy, perfect for an air-conditioned meal in the summer.

  2. Comfy Crochet Crop Top - This lightweight top is the ideal summer solution: with lightweight yarn and smaller hook size plus this airy open design, you'll make the best summertime designs.

I Crochet Hook Size Patterns

I/9 (UK 5, 5.5mm) hooks can be used with light worsted yarn or medium weight yarn, also known as worsted, afghan or aran yarn. This yarn is the most common and standard yarn to use. For more of our I crochet hook patterns, click here.

  1. Many Compliments Crochet Necklace - Crochet accessories this small should mostly be made with worsted weight yarn (and I hooks) or smaller to prevent your design from being too overwhelming. 

  2. Nana's Favorite Baby Blanket - This yarn and hook size combo is the best for a smaller baby blanket or a throw. These blankets won't work up as quickly as one with bigger hooks and thicker yarn, but with smaller designs it won't be too bad to work through.

J Crochet Hook Size Patterns

J/10 (UK 4, 6.0mm) hooks use medium weight yarn as well. This yarn can be used for a wide variety of projects, from your typical fall shawls, hats and accessories to a snuggly afghan. Check out some more of our J crochet hook patterns here.

  1. Grandma's Favorite Wobble Afghan - Worsted weight yarn and the corresponding hook size is a good blanket combo - it can be worked up with tight stitches to produce a detailed and warm design.

  2. 1920s Cloche Crochet Hat - Worsted weight yarn (plus your J hook) makes a standard crochet hat. Whether you're after a cloche design, like this 1920s beauty, or a crochet beanie, this is your best bet for a warm winter design.

L Crochet Hook Size Patterns

Bulky yarn, also known as chunky, craft or rug yarn, is thick and plush and makes some super cozy accessories, and the L/11 (UK 0, 8.0mm) hook is perfect for that. Because it's thick it also works up quickly. Check out more of our L crochet hook patterns here.

  1. Coraline in Minden Oversized Cowl Wrap - Add some lightness to larger hooked projects by using an airier stitch. This design will still keep you warm without being too much for a brisk fall day.

  2. Seascape Scarf Crochet Pattern - We're in the sweet spot for more everyday scarves with this hook and yarn weight combo - this crochet scarf is warm and cozy without being too weighted and overwhelming.

K Crochet Hook Size Patterns

K/10.5 (UK 3, 10.5mm) hooks fall on the cusp between medium weight yarn and bulky yarn, so you would pick your yarn depending on your final vision for the project or how tightly you want to crochet your stitches. Check out more of our K crochet hook patterns here.

  1. Emerald Lace Crochet Wrap - This crochet wrap, though still featuring intricate designs, is definitely more of a winter accessory instead of a summer one due to the heaviness of the yarn and the size of the hook. 

  2. Moroccan Basket - Bulky weight yarn and a corresponding hook size is ideal for crochet baskets and home decor pieces like this for maximum sturdiness.

M Crochet Hook Size Patterns

M/13 (UK 00, 9.0mm) crochet hooks fall between bulky yarn and super bulky, also known as roving yarn. This yarn is the thickest of them all and makes for the coziest and warmest projects. Check out some more of our M crochet hook size patterns here.

  1. Basic Boho Crochet Scarf - Multiple colors in a thick yarn and large hook size combo makes for a weighted and cozy crochet scarf that will absolutely keep you warm.

N Crochet Hook Size Patterns

Besides thicker winter accessories, as shown, you can make incredibly plush winter afghans with this yarn and your N/15 (UK 000, 10.00mm) hook combination. Check out more of our N crochet hook patterns here.

  1. Classic Infinity Scarf - Chunky cowls and scarves made with big hooks and thick yarn are ideal for the coldest temperatures. 

  2. Granny Square Weekend Wonder - With bulkier yarn and a bigger hook, you can still add some detailing to your warm while making a warmer throw for your home.

P/Q Crochet Hook Size Patterns

Reach for this yarn and hook (P/Q, 15.0 mm) combination anytime you want to add some weight to a project or make something supremely cozy. For more P crochet hook patterns, click here.

  1. Quick n' Cozy Crochet Afghan - With super chunky yarn and a bigger hook, you can work up a blanket in half the time and make it double warm - it's a win-win!

  2. Cozy Cowl Poncho Pattern - Chunky weight yarn makes for the coziest and warmest designs, like this cowl poncho pattern.

What's your favorite type of yarn to work with?

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Cool! I like being able to see patterns that use specific hooks.

Variety is the spice of life they say! ) I enjoy working with many hook and yarn sizes, but most of the time I use worsted weight yarn with hook sizes H through J being used most frequently. My favorite yarn is cotton or special wool blends. My "go to" everyday yarn is Red Heart Super Saver for projects that will be used a lot and washed a lot, they really stand up to frequent use.

I have bought extra long crochet hooks and been shown one way of crocheting with it can you tell me if there are any patterns for these extra long hooks and is there a particular name for the style of crocheting for them thanks

Those extra long crochet hooks with ends that look like a knitting needle are known as afghan hooks and are used with tunisian style crochet stitches.

I love alpaca because of the softness and the hypoallergenic properties. I love this article because although I have been crocheting for fifty years I still wonder at times if a different size hook would be better for my project. And I can give this article to my friend who calls me to ask about hook sizes.

My favorite style of yarns to work with are those that are made of Animal fibers.

I like working with soft cotton yarn.

Have lots of friends and family members who would love this.. they always think of me ...i would like to return the favor if I win..

i like worsted weight, natural fibers )

I prefer worsted wool yarn.

I prefer using Simply Soft by Caron. This is easy to work with and leaves you with a project that is soft enough for the most tender skin of the preemies, so you can feel comfortable gifting it to anyone.

Hand paint! Ever skein is unique.

any i can get my hands on


Worsted weight is what I use the most, baby weight if I'm making something for a new arrival

my favorite type of yarn to work with is free...or almost free.

Most of what I have made has been with worsted weight yarn.

Good ole redheart supersaver. It's easy to find, and econimical. It's what I learned on.

I like to use what I consider standard yarn. I believe it is worsted weight 4. It is what I learned to crochet with and it is what I am most comfortable with. I just started crocheting with cotton crochet thread to make doilies but prefer yarn crocheting. I am a not a beginner but do not consider myself to be advanced either.

I like to use fine baby yarn

I can't say that I have one favourite really, but I do like a smoother yarn that doesn't split easily. I also like using super-bulky yarn...probably because the project then comes together really quickly!

Red Heart because it is available in my area and the price as I am on SS.

I love to crochet Mandalas and Afghans so I prefer to use Worsted Weight yarn. It has to be good quality yarn or it tends to give you problems

my favorite yarn to work with is reg #4 ww chunky/bulky

i don't have a favourite

I like to knit with pretty much any yarn, but prefer a medium to thick yarn and same for needles. I do love the look of knit that is done with small yarn and needles.

I can't say that I have a depends on pattern, hook and mood as well. There are some fantastic patterns on this page that am going to try though and have lots in my stash that would work perfectly

I have to say my favorite yarn is usually whatever I'm working with at the time--unless it's giving me problems! There are some great patterns here, thanks.

I don't really have a favorite. I like to work with all types and size hooks..I do mostly use Lion brand.

My favorite yarn to work with is Caron Simply Soft... Bernat Baby is a close 2nd, but oh, that Simply Soft glides on my hooks, so wonderful to work with!! Also very durable, retained its softeness even after multiple launderings and use by young children.

Bernat is my favorite-Thank you, Susan

I like all kinds of yarn I have no favorite. God bless you and thank you for the giveaway.

I would love to have these needles. At 70 and on a fixed income I can't afford to go out and buy a new set . I'm still using the old skinny metal needles I bought years ago. Not comfortable for my old hands. Thanks!

I like to work with sockweight yarn.

Super helpful of you to write this. Any beginner should read this article before embarking on any project. Its so easy to use the wrong hook and yarn for a project then end up frustrated at the results but hey this can be avoided. Thanks for writing this article for us!!

What a great idea it is to organize patterns by hook size! I especially like the yarn and project suggestions included in the description under each hook size. If you are new to crochet or even if you have crocheted a lot, this is a great way to learn more about what hook size and yarn go together, with the added bonus of patterns included to get you started!

#BESTIDEAEVER! Love these easy to follow crochet instructions)


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