Crochet has become so popular again and there is such a huge variety of designs available, particularly designs from the USA which are readily available for free online, so we thought a crochet hook conversion chart might be helpful for you to indentify the correct size of hook you'll need for your project.
I know that some of the US patterns do include the metric conversions but this will be useful for when they don't !
If you're thinking about a new crochet hook for your next project we can recommend the Knit Pro Waves, they are our best selling crochet hook and are so comfortable to use with the soft grip handle.