What yarn is recommended to use with the 16 mm (Q) crochet hook?

Skill Level: 2. Easy,
Yarn Brand: Bernat,
Yarn Name: Blanket Extra,
Yarn Weight: Weight 7 &#8211; Jumbo,
Hook Size: 15 mm (P/Q), 16 mm (Q),
Stitches: Half Double Crochet, Herringbone Half Double Crochet,
Color: Brown, Neutral,

It is recommended that yarn weights are used with the 16 mm (Q) crochet hook size.

What is the metric equivalent of a Q crochet hook?

The metric size of 16 mm is the same as the US crochet hook size of Q.

The US size of Q is the same as the metric crochet hook size of 16 mm.

These free crochet patterns were all created using various yarn types and brands, but all use the 16 mm (Q) sized crochet hook.