Japanese Headwear Size Comparison Charts
In Japan, as with almost all apparel, headwear sizes are measured in centimeters. The following information is a general guide for choosing your size, but generally it's better to actually measure your size. If in doubt, contact us for assistance.
Cap Sizes
Many of our baseball caps are adjustable, so you don't need to worry too much about your exact size. For the fitted caps, however, you should use the table only as a guide and actually measure your cap size.
For New Era fitted caps, their website has an 'official' size chart.
There is always a risk when buying apparel online, so if you're unsure we'd be more than happy to answer any questions you have about a particular model or size.
| Head size (in.) |
Head size (cm) |
American cap size |
Japanese cap size |
|---|---|---|---|
| 20 1/2 | 52.1 | 6 1/2 | S |
| 20 7/8 | 53 | 6 5/8 | S |
| 21 1/4 | 54 | 6 3/4 | S-M |
| 21 5/8 | 54.9 | 6 7/8 | M |
| 22 | 55.8 | 7 | M-L |
| 22 3/8 | 56.8 | 7 1/8 | L |
| 22 3/4 | 57.8 | 7 1/4 | L-LL |
| 23 1/8 | 58.7 | 7 3/8 | LL |
| 23 1/2 | 59.7 | 7 1/2 | LL |
| 23 7/8 | 60.6 | 7 5/8 | -- |
| 24 1/4 | 61.6 | 7 3/4 | -- |
| 24 5/8 | 62.5 | 7 7/8 | -- |
| 25 | 63.5 | 8 | -- |
| 25 3/8 | 64.5 | 8 1/8 | -- |
