
Hat Size Guide

Everyone is unique, however these charts were designed to give you a rough idea of average circumference for project planning purposes. These yardages are rough estimates, as yarn usage changes depending on stitch pattern. You’ll need approximately 2 inches of negative ease for your hat’s circumference; that means the circumference of the actual hat should be approximately 2 inches smaller than the circumference of your head.
These yardages were estimated using a gauge of 5 sts per inch and a stockinette stitch. The heights and yardages were calculated taking into account a folded brim or a slouchy style hat; fitted hats will be shorter and may require less yardage.
Age | Head Circumference | Hat Height | Yardage |
---|---|---|---|
Preemie (1-2 lbs) | 9″ | 3.5″ | 50-110 |
Preemie (3-4 lbs) | 11″ | 4″ | 50-110 |
Preemie (4-5 lbs) | 12″ | 4.5″ | 50-110 |
Preemie (5.5-6 lbs) | 13″ | 5″ | 50-110 |
Newborn | 14″ | 6″ | 100-150 |
Baby – 3 to 6 months | 17″ | 7″ | 100-150 |
Baby 6 to 12 months | 18″ | 7.5″ | 100-150 |
Toddler – preschooler (12 months – 3 years) | 19″ | 8″ | 100-150 |
Child (3 – 10 years) | 20″ | 8.5″ | 100-180 |
Pre-teens and Teens | 21″ | 10″ | 100-180 |
Adult Woman | 22.5″ | 11″ | 120-200 |
Adult Man | 24″ | 11.5″ | 170-250 |
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