Adult Hat Conversion Chart
Use this chart to determine hat size conversions.
| HAT SIZE USA | HAT SIZE IN CM | HAT SIZE USA | HEAD SIZE IN INCHES |
| 6 1/8 | 19 1/8 | ||
| 6 1/4 | 19 1/2 | ||
| 6 3/8 | 19 7/8 | ||
| 6 1/2 | 20 1/4 | ||
| 6 5/8 | 20 3/4 | ||
| 6 3/4 | 21 1/8 | ||
| 6 7/8 | 55 | SMALL | 21 1/2 |
| 7 | 56 | 21 7/8 | |
| 7 1/8 | 57 | MEDIUM | 22 1/4 |
| 7 1/4 | 58 | 22 5/8 | |
| 7 3/8 | 59 | LARGE | 23 |
| 7 1/2 | 60 | 23 1/2 | |
| 7 5/8 | 61 | X-LARGE | 23 7/8 |
| 7 3/4 | 24 1/4 | ||
| 7 7/8 | XX-LARGE | 24 5/8 |





