The size of a seal is its diameter in millimeters. Longer names need a bigger seal.
How many letters fit (per line)
| Size | Max lines | Katakana 1 line | Katakana 2 lines | Katakana 3 lines | Alphabet 1 line | Alphabet 2 lines | Alphabet 3 lines |
|---|---|---|---|---|---|---|---|
| 13.5 mm | 2 | 5 | 4 each | — | 7 | 6 each | — |
| 15.0 mm | 2 | 5 | 4 each | — | 7 | 6 each | — |
| 16.5 mm | 3 | 6 | 5 each | 5 each | 8 | 7 each | 7 each |
| 18.0 mm | 3 | 6 | 5 each | 5 each | 8 | 7 each | 7 each |
- We split your name into lines at the spaces, never in the middle of a word.
- Spaces are not counted. In katakana, small letters (ッ, ャ) and the dot (・) count as one letter each.
- Kanji uses the same numbers as katakana.
- Alphabet numbers are a guide. If your name is close to the limit, we adjust the layout in your proof.
Examples
Sample image. Your proof shows the exact design.
| Name | Alphabet | Katakana |
|---|---|---|
| SMITH / スミス | 13.5 mm or larger, 1 line | 13.5 mm or larger, 1 line |
| NGUYEN VAN AN / グエン ヴァン アン | 13.5 mm or larger, 2 lines (NGUYEN / VAN AN) | 16.5 mm or larger |
| A very long word (more than 8 letters) | Choose surname only or given name only | — |
Which size should I choose?
| Seal | Sizes | Our recommendation |
|---|---|---|
| Registered Seal (Jitsuin) | 13.5 / 15.0 / 16.5 / 18.0 mm | 16.5 mm for most names |
| Bank Seal (Ginko-in) | 12.0 / 13.5 / 15.0 mm | 13.5 mm for a surname only |
The order form checks your name and shows which sizes fit.
For seal registration, the impression must not fit inside an 8 mm square and must fit inside a 25 mm square. All our registered seal sizes meet this rule.