Conversion Charts For Crocheting
A chart for translating crochet patterns written in British English crochet terms into American English crochet terms.
At About Crochet: This chart can be helpful in deciding upon a hook size to use with a certain size of crochet thread.
Easy and Cheap Crafts site: Tips to help you when converting a pattern between crocheting and knitting.
At Yarn Forward: Metric sizes (mm) vs US vs UK.
At Yarn Forward: Converting metric sizes (mm) vs US vs UK.
At Hass Designs: The differences shown between US/Japan pattern symbols and European symbols with the same meaning.