リングサイズ
| 日本番 | アメリカ番 | イギリス番 | 直径mm | 円周寸法mm |
|---|---|---|---|---|
| １ | １ | Ｃ | １３ | ４０．８ |
| ２ | ２ | Ｄ | １３ 1/3 | ４１．９ |
| ３ | ２ 1/2 | Ｅ | １３ 2/3 | ４２．９ |
| ４ | ３ | Ｆ | １４ | ４４．０ |
| ５ | ３ 1/2 | Ｇ | １４ 1/3 | ４５．０ |
| ６ | １４ 2/3 | ４６．１ | ||
| ７ | ４ | Ｈ | １５ | ４７．１ |
| ８ | ４ 1/2 | Ｉ | １５ 1/3 | ４８．２ |
| ９ | ５ | Ｊ | １５ 2/3 | ４９．２ |
| １０ | ５ 1/2 | Ｋ | １６ | ５０．３ |
| １１ | ６ | Ｌ | １６ 1/3 | ５１．３ |
| １２ | １６ 2/3 | ５２．４ | ||
| １３ | ６ 1/2 | Ｍ | １７ | ５３．４ |
| １４ | ７ | Ｎ | １７ 1/3 | ５４．５ |
| １５ | ７ 1/2 | Ｏ | １７ 2/3 | ５５．５ |
| １６ | ８ | Ｐ | １８ | ５６．６ |
| １７ | ８ 1/2 | Ｑ | １８ 1/3 | ５７．６ |
| １８ | ９ | Ｒ | １８ 2/3 | ５８．６ |
| １９ | ９ 1/2 | Ｓ | １９ | ５９．７ |
| ２０ | １０ | Ｔ | １９ 1/3 | ６０．７ |
| ２１ | １９ 2/3 | ６１．８ | ||
| ２２ | １０ 1/2 | Ｕ | ２０ | ６２．８ |
| ２３ | １１ | Ｖ | ２０ 1/3 | ６３．９ |
| ２４ | １１ 1/2 | Ｗ | ２０ 2/3 | ６４．９ |
| ２５ | １２ | Ｘ | ２１ | ６６．０ |
| ２６ | １２ 1/2 | Ｙ | ２１ 1/3 | ６７．０ |
| ２７ | １３ | Ｚ | ２１ 2/3 | ６８．０ |
