Quick Guide: Matching Crochet Hook Sizes to Seasonal Yarn Weights

As a guide to the thickness of yarn, some yarn manufacturers indicate it as "medium-fine" or "medium-thick," but there are also cases where there is no such indication.
Once you get used to it, you will be able to see the actual thing and get an idea of the approximate thickness and what size crochet hook to use.

When choosing thread, it's best to see the actual product, but even when you go to the store, they may not have all the colors available.
In such cases, having a yarn sample is very helpful as it allows you to check all the colors at home.
In addition to the thread itself, the thread sample also includes the recommended needle to use, gauge, and how many grams of thread there is per ball and how many meters it is wound, so there is plenty of information to check the thickness.

This time, we'll take a slightly different perspective and, based on thread samples from each manufacturer, pick out what kind of thread corresponds to each size of crochet hook.
Although it is not possible to include all threads, I think I have been able to roughly "visualize" which threads are similar in thickness to each other.

For example, when it comes to Hamanaka's Eco Andaria and Daruma's SASAWASHI, the recommended needles to use are size 5 to 7 crochet hooks, as recommended by each manufacturer.
The left-right alignment of the columns has no particular significance.

Spring/Summer yarn and crochet hook sizes

The abbreviation in parentheses is the manufacturer's name.
H: Hamanaka D: Daruma MA: Fairy Tale Art

When you think of spring and summer, raffia-style threads and twine come to mind.
The thickness of each thread seems to be relatively similar, so please use this as a reference when choosing an alternative thread.

Autumn/winter yarn and crochet hook sizes

The abbreviation in parentheses is the manufacturer's name.
H: Hamanaka D: Daruma P: Puppy

There are so many different winter yarns that it can be difficult to choose, but if you have a yarn that you like, try comparing it with other yarns.