How to Measure Your Circular Knitting Needles - A Bee In The Bonnet
Just do a google search "crochet hook sizes" mine came up with crochet hook conversion cha… | Knitting needle size chart, Knitting needles, Knitting needles sizes
Knitting Needle Sizes and Conversion Chart (Free Printable) - Sheep and Stitch
Knitting Needle Sizes and Conversion Charts - Knitfarious
Amazon.com: Knitter's Pride Zing Knitting Needles Circular 24 inch Size US 1.5 (2.5mm) Bundle with 10 Artsiga Crafts Stitch Markers 140093