Fillable Printable Standard Hat Sizing Chart

Standard Hat Sizing Chart

Hat Sizing Chart

Babies Inches Centimeters Inches Centimeters Inches Centimeters Inches Centimeters Knit Crochet

Preemie (1-2lbs) 9-10 22.9-25.4 8-9 20.3-22.9 2-2¼ 5.1-5.7 3½-4 8.9-10.2 50-110yds 65-150yds

Preemie (2-3 lbs) 10-11 25.4-27.9 9-10 22.9-25.4 2¼-2¾ 5.7-7 4-4½ 10.2-11.4 50-110yds 65-150yds

Preemie (3-4lbs) 11-11½ 27.9-29.2 10-10½ 25.4-26.7 2¾ 7.0 4½ 11.4 50-110yds 65-150yds

Preemie (4-5 lbs) 11½-12 29.2-30.5 10½-11 26.7-27.9 2¾-3 7-7.6 4½-4¾ 11.4-12.1 50-110yds 65-150yds

Preemie (5-6 lbs) 12-13 30.5-33 11-12 27.9-30.5 3-3¼ 7.6-8.3 4¾-5¼ 12.1-13.3 50-110yds 65-150yds

Newborn 13-13½ 33-34.3 12-12½ 30.5-31.8 3¼-3½ 8.3-8.9 5¼-5½ 13.3-14 100-150yds 130-200yds

0-3 Months 13½-14 34.3-35.6 12½-13 31.8-33 3½-3¾ 8.9-9.5 5½ 14.0 100-150yds 130-200yds

3-6 Months 14-17 35.6-43.2 13-16 33-40.6 3¾-4¾ 9.5-12.1 5½-5¾ 14-14.6 100-150yds 130-200yds

6-9 Months 17-18 43.2-45.7 16-17 40.6-43.2 4¾-5 12.1-12.7 5¾-7¼ 14.6-18.4 100-150yds 130-200yds

9-12 Months 18-19 45.7-48.3 17-18 43.2-45.7 5-5¼ 12.7-13.3 7¼-7½ 18.4-19.1 100-150yds 130-200yds

Children Inches Centimeters Inches Centimeters Inches Centimeters Inches Centimeters Knit Crochet

1-3 Years (Toddler) 19-19½ 48.3-49.5 18-18½ 45.7-47 5¼-5½ 13.3-14 7½-7¾ 19.1-19.7 100-180yds 130-240yds

3-10 Years (Child) 19½-20 49.5-50.8 18½-19 47-48.3 5½-5¾ 14-14.6 7¾-8 19.7-20.3 100-180yds 130-240yds

10-18 Years (Youth) 20-21½ 50.8-54.6 19-20½ 48.3-52.1 5¾-6¼ 14.6-15.9 8-8½ 20.3-21.6 100-180yds 130-240yds

Adults Inches Centimeters Inches Centimeters Inches Centimeters Inches Centimeters Knit Crochet

Womens Small 21½-22 54.6-55.9 20½-21 52.1-53.3 6¼ 15.9 8½-8¾ 21.6-22.2 120-200yds 160-270yds

Womens Medium 22-22½ 55.9-57.2 21-21½ 53.3-54.6 6¼-6½ 15.9-16.5 8¾-9 22.2-22.9 120-200yds 160-270yds

Womens Large 22½-23 57.2-58.4 21½-22 54.6-55.9 6½-6¾ 16.5-17.2 9-9¼ 22.9-23.5 120-200yds 160-270yds

Womens Xlarge 23-23½ 58.4-59.7 22-22½ 55.9-57.2 6¾ 17.2 9¼-9½ 23.5-24.1 120-200yds 160-270yds

Mens Small 22½-23 57.2-58.4 21½-22 54.6-55.9 6½-6¾ 16.5-17.2 9-9¼ 22.9-23.5 200-255yds 270-340yds

Mens Medium 23-23½ 58.4-59.7 22-22½ 55.9-57.2 6¾ 17.2 9¼-9½ 23.5-24.1 200-255yds 270-340yds

Mens Large 23½-24 59.7-61 22½-23 57.2-58.4 6¾-7 17.2-17.8 9½ 24.1 200-255yds 270-340yds

Mens XL 24-24½ 61-62.2 23-23½ 58.4-59.7 7-7¼ 17.8-18.4 9½-9¾ 24.1-24.8 225-275yds 300-360yds

Mens XXL 24½-25 62.2-63.5 23½-24 59.7-61 7¼ 18.4 9¾-10 24.8-25.4 225-275yds 300-360yds

Circumference Formula:

Head Circumference / 3 = ___ - 1" = Crown Circle Diameter

Hat Height Formula:

Head Circumference x 0.4 = Hat Height

Crochet takes approx. 131% more yardage than knitting the same sized item.

Multiply knitting yardage by 1.31 to get the crochet yardage.

Compliments of KnitsyCrochet!

Head Circumference

Hat Circumference

Crown Circle Diameter

Hat Height

Yardage Needed