Hat Size Conversion Chart

Hat SizeMeasurement
in Inches
Metric
Measurement
Size Code
6-1/220-1/4"52X-Small
6-5/820-3/4"53
6-3/421-1/8"54Small
6-7/821-1/2"55
721-7/8"56Medium
7-1/822-1/4"57
7-1/422-5/8"58Large
7-3/823"59
7-1/223-1/4"60X-Large
7-5/823-7/8"61
7-3/424-1/4"62XX-Large
7-7/824-5/8"63.
825"64