| Head | 20-3/8" | 20¾" | 21-1/8" | 21½" | 21-7/8" | 22¼" | 22-5/8" | 23" | 23½" | 23-7/8" | 24¼" | 24-5/8" | 25" |
| Hat | 6½ | 6-5/8 | 6¾ | 6-7/8 | 7 | 7-1/8 | 7¼ | 7-3/8 | 7½ | 7-5/8 | 7¾ | 7-7/8 | 8 |
To get head size, measure around the largest part of your head, above the eyebrows, with a tape measure. If you are between sizes, round up to the next size.