How do you cast off on a round knitting loom?

How long should a loom hat be?

Loom Size / Hat Size

Hat Recipient Avg Head Circumference Hat Length
Baby – 1 yr. 18 in / 46 cm 7 in
Toddler 21 in / 53 cm 7 in
Tweens & Teens 22 in / 56 cm 8 in
Women & Lean Men 22 in / 56 cm 8 – 9 in
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