Crochet Hook Sizes: A Simple Guide

This handy crochet hook size chart from makes it easy to understand the most common hook sizes used in the United States. The visual guide clearly displays each hook size—from B through S—alongside its corresponding millimeter measurement, helping crocheters quickly match letter sizes to metric equivalents. Color-coded hook illustrations make the chart simple to scan at a glance, whether you’re choosing the right hook for a new pattern or converting between sizing systems. Perfect for beginners and experienced crocheters alike, this printable reference sheet is a helpful tool to keep near your yarn stash, project bag, or crafting space whenever you need a quick hook size check.

Get your FREE Crochet Hook Size Chart here!