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What Size Crochet Hook or Knitting Needle for what Ply Yarn?

The Complete Guide to using the right sized Crochet Hook or Knitting Needle with the right Weight Yarn

 If you like to be a little creative with projects it helps to know what weight yarns equal to what plys and what knitting needles and crochet hooks can be used with what, so we have created this handy chart to help you chose the right fit every time.

So, whether you comparing English yarn terms to American terms or are looking for a guide on what crochet hook size is suitable for a 4-ply yarn, simply refer to the table below. 

Please note, this table has been created as a guide, always refer to the pattern or yarn in question. We would also recommend testing gauge and tension with a tension swatch. 

Yarn Weight UK Yarn Weight US Yarn Weight Australia Needle Size Hook Size
1 ply Lace 2 ply 1.25-3mm 0.75-3mm
2 ply Fingering 3 ply 1.25-3.5mm 2-3.5mm
4 ply Sport 5 ply 3.25-4mm 2-3.5mm
DK Light Worsted 8 ply 4-5mm 3.5-4.5mm
Aran Worsted 10 ply 4.5-6mm 5-6.5mm
Chunky Bulky 12-14 ply 5-8mm 6.5-9mm
Super Chunky Super Bulky 16 ply 8-12mm  9-14mm
Super Chunky  Jumbo 20 ply 12mm + 15mm+


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