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|
|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|