Passport Romaji Name Converter (Hepburn)
Enter your family and given names in hiragana or katakana to get the uppercase Hepburn romaji used on Japanese passports. It omits long O and U sounds (大野 → ONO, 伊藤 → ITO), writes ん as M before B, M or P (NAMBA), and can switch to the OH spelling (OHNO) if you prefer. For general romaji conversion without these passport rules, use the Romaji ⇔ Hiragana Converter.
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Result
- Family name
- Given name
- Full name
Notes
- The result follows the Hepburn conventions that the Japanese Ministry of Foreign Affairs describes for passports (no long O/U vowels, M before B/M/P, doubled consonants for small っ). It is not legal advice; always check the latest official guidance and your passport office before applying.
- Spellings that depart from standard Hepburn, such as OH, must be requested and discussed with the passport office in advance. The spelling you choose generally cannot be changed later, and family members should keep the same spelling of the family name.
- Kanji cannot be converted. Enter the official reading in hiragana. Maiden-name and alias notations are outside the scope of this tool.
- Repeated A, I and E vowels (かあ → KAA, みい → MII) are not shortened, even in passport Hepburn.
Glossary
Omitting long vowels
In passport Hepburn, long O and U sounds (おう, おお, うう) are normally not written. 大野 (おおの) becomes ONO and 優子 (ゆうこ) becomes YUKO.
OH spelling
A way of writing the long O sound as OH (OHNO, ITOH). It departs from standard Hepburn, so you need to ask the passport office beforehand if you want it.
M before B, M and P
ん is written N, except before B, M and P where it is M (なんば → NAMBA, ほんま → HOMMA, さんぺい → SAMPEI). No apostrophe is used (じゅんいち → JUNICHI).
FAQ
How are long vowels in names like 大野 or 伊藤 written?
In passport Hepburn, long O and U sounds are normally omitted, so 大野 (おおの) is ONO and 伊藤 (いとう) is ITO. If you want an OH spelling such as OHNO or ITOH, switch the option here and discuss it with the passport office before applying.
Is なんば NANBA or NAMBA?
ん is written M before B, M and P, so なんば is NAMBA, ほんま is HOMMA and さんぺい is SAMPEI. Otherwise it is N. No apostrophe is used before a vowel or Y, so じゅんいち is JUNICHI.
How is this different from a general romaji converter?
A general converter writes 大野 as ōno or oono. This tool follows the passport conventions: long O/U vowels omitted, M before B/M/P, no apostrophes and uppercase output. For general conversion, use the Romaji ⇔ Hiragana Converter.
Can I enter my name in kanji?
No. There is no reading dictionary, so enter the official reading in hiragana or katakana. A warning appears if the input contains characters that cannot be converted.
Can I use the result as-is on my application?
Treat it as a reference. Rules can change and some cases need confirmation at the passport office. The spelling you choose generally cannot be changed later, so check the latest official guidance first.
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