Hepburn Romanization: How to Read Japanese in the Latin Alphabet
If you start learning Japanese, you will see 東京 on a sign and have no idea how to say it. Kanji and kana carry sound, but only for readers who already know them. Before you learn them, you need another way in.
Romanization writes Japanese sounds in the Latin alphabet, so you can sound out a word before you can read the script. The version on Japanese road signs, station names and passports, and in most textbooks, is Hepburn romanization.
The name comes from James Curtis Hepburn, an American missionary who published a Japanese-English dictionary in 1867. The spelling we call Hepburn today first appeared in the third edition of that dictionary in 1886. A society of Japanese and foreign scholars, the Rōmaji-kai, had worked it out the year before. In December 2025 the Japanese government made a Hepburn-based spelling the national standard, replacing rules that had favored a different system since 1937.
What Hepburn romanization is
Hepburn writes Japanese so that an English speaker who reads the result out loud gets close to the Japanese pronunciation. Most of its rules follow from that aim.
The cost is consistency. Hepburn writes し as "shi," because that is close to how し sounds to an English ear. A system that maps kana to letters one for one writes it "si": the rule is tidier, but an English reader will say it wrong. Hepburn picks pronunciation, and that choice accounts for most of its differences from the other systems.
You will meet two main versions. Traditional Hepburn is the 1886 spelling from the third edition of the dictionary. Modified Hepburn, also called Revised Hepburn, comes from a 1908 revision, and Kenkyusha's Japanese-English dictionary (third edition, 1954) made it the reference most textbooks and dictionaries follow. Writers also differ on smaller details, such as whether えい becomes "ei" or "ē" (sensei or sensē).
The history: a dictionary and a romanization society
Hepburn was a Presbyterian missionary and physician who reached Japan in 1859 and settled in Yokohama. With Japanese assistants he spent years compiling a Japanese-English dictionary, published in 1867 as Wa-Ei Gorin Shūsei. His chief collaborator was the Japanese scholar Kishida Ginkō, so the work was a joint Japanese-American project from the start. The first edition used Hepburn's own spelling scheme, which differs in places from what we call Hepburn now.
In 1885 a group of Japanese and foreign scholars formed the Rōmaji-kai (Romanization Society). They wanted Japanese itself to be written in Latin letters, and they agreed on a spelling for it. Hepburn adopted their spelling in the third edition of his dictionary in 1886. That spelling is what "Hepburn romanization" refers to.
Hepburn spread through dictionaries and textbooks and into signs, station names and passports. The government, though, backed a different system. A 1937 cabinet order made Kunrei-shiki the official romanization, and a 1954 cabinet notice kept it as the main system while allowing Hepburn spellings as an alternative. For about seventy years, the official rules said one thing and the street signs said another.
How the system works
The basic syllables
Japanese has five vowels: a, i, u, e, o. They sound like the vowels in Italian or Spanish, and each letter stands for one sound. The consonant-vowel syllables build on them (ka, ki, ku, ke, ko; sa, shi, su, se, so; ta, chi, tsu, te, to) and so on through the gojūon table of forty-six basic kana.
Hepburn departs from a systematic mapping in five common syllables:
- し is "shi," not "si"
- ち is "chi," not "ti"
- つ is "tsu," not "tu"
- ふ is "fu," not "hu"
- じ is "ji," not "zi"
An English reader will say "shi" about right. Read "si" and you get something like "see." These five forms are what make Hepburn easy to pronounce, and they are the spellings Kunrei-shiki and Nihon-shiki write differently.
Long vowels and macrons
Japanese has short and long vowels, and the length changes the meaning. Modified Hepburn marks a long vowel with a macron, a line over the letter: ā, ī, ū, ē, ō.
- Tōkyō (東京), a long "o" in both syllables
- Ōsaka (大阪), a long "o" at the start
- kyū (九, "nine"), a long "u"
- obāsan (おばあさん, "grandmother") vs obasan (おばさん, "aunt"), where the macron is the only difference
Macrons are the textbook convention, but plenty of people write the long vowel with two letters: obaasan, Tookyoo, kyuu. You will see this in learner materials and on keyboards without macrons, and it is a normal alternative. Many English texts drop the length altogether (Tokyo, Osaka, Kyoto). That works for place names your reader already knows, but a learner who reads "Tokyo" will say three short syllables.
Macrons also lose information. In modified Hepburn, 公理 (axiom) and 高利 (high interest), both こうり, are kōri. 氷 (ice), こおり, is also kōri. 小売 (retail) is こうり too, but there the う belongs to a separate word, 売り, so Hepburn writes it kouri. You can tell 氷 and 公理 apart in kana, not in Hepburn, and to write 小売 correctly you have to know where the word boundary falls.
Passports and long vowels
Japanese passports do not use macrons. By default the passport spelling drops the long vowel: 大野 becomes Ono and 佐藤 becomes Sato. If you ask, you can have an "h" added for a long o (Ohno, Satoh), and with proof that you already use it, a spelling such as Oono or Satou. One name can end up spelled Ono on a passport, Ōno in a textbook and Ohno on a business card.
The syllabic n and the apostrophe
Hepburn writes ん as "n." It can end a word or come before a consonant: san (さん), shinbun (新聞, "newspaper"), nihon (日本, "Japan").
Before a vowel or a "y," you need an apostrophe. kin'en (禁煙, "no smoking") and kinen (記念, "commemoration") are different words, and the apostrophe tells you that the "n" stands alone and does not start a syllable like "ne." Names work the same way: Jun'ichirō vs Junichirō.
Casual romanization often leaves the apostrophe out, and then kin'en and kinen look identical.
The particles は, を, へ
Three particles sound different from their kana. Hepburn writes the sound:
- は is "wa" when used as a particle, not "ha" (its reading as a regular syllable)
- を is "o" when used as a particle, not "wo"
- へ is "e" when used as a particle, not "he"
The kana keep an older spelling, and Hepburn follows modern pronunciation, so わたしは is "watashi wa." You will still see を written "wo" in song titles, some textbooks and typing guides, since you type を as "wo" on a romaji keyboard. Traditional Hepburn also wrote it "wo."
Doubled consonants
The small っ (sokuon) marks a consonant held longer than usual. Hepburn doubles the next consonant:
- kitte (切手, "stamp")
- matte (待って, "wait")
- kippu (切符, "ticket")
If you don't hold the consonant, you say another word: kite (着て, "wear") instead of kitte (切手, "stamp").
Try Fink for your next translation
See the translation, every change, and the why on one screen.
Open AppHepburn vs. Kunrei-shiki vs. Nihon-shiki
Two other systems matter. Nihon-shiki was devised by the physicist Tanakadate Aikitsu in 1885. Kunrei-shiki is a simplified form of Nihon-shiki, made official in 1937 and kept in 1954.
Both come out of the same Meiji-era movement as the Rōmaji-kai: people who wanted Japanese written in Latin letters instead of kana and kanji. Tanakadate designed for Japanese readers and for the structure of Japanese, not for English speakers, so his system follows the kana table row by row.
Nihon-shiki comes close to one kana, one spelling: it writes ぢ as "di," づ as "du," and even the particles as "ha," "he," "wo." Kunrei-shiki gives some of that up. It spells ぢ and じ both "zi," and づ and ず both "zu," and it writes the particles は, へ, を as "wa," "e," "o," the same as Hepburn.
| Japanese | Hepburn | Nihon-shiki | Kunrei-shiki |
|---|---|---|---|
| し | shi | si | si |
| ち | chi | ti | ti |
| つ | tsu | tu | tu |
| ふ | fu | hu | hu |
| じ | ji | zi | zi |
| ぢ | ji | di | zi |
| づ | zu | du | zu |
| 東京 | Tōkyō | Tôkyô | Tôkyô |
Hepburn's "shi," "chi," "tsu," "fu" and "ji" are easy for an English reader to say. Kunrei-shiki's "si," "ti," "tu," "hu" and "zi" follow the kana table, and an English reader will mispronounce them.
Supporters of Kunrei-shiki point to grammar. In Kunrei-shiki a verb keeps one stem: matu, matimasu, matte. Hepburn gives you matsu, machimasu, matte. Hepburn had use on its side: textbooks outside Japan used it, and inside Japan so did passports, road signs and train stations.
What practitioners say
Linguists and teachers who have worked in Japan have argued about the two systems for decades.
Neil Kubler, a linguist who has written textbooks on both Chinese and Japanese, points out that Kunrei-shiki has a real pedagogical advantage: "Kunreisiki is better for representing the Japanese sound system from the point of view of native speakers. Kunreisiki is also better for serious Japanese learners as it greatly simplifies the description of Japanese grammar: cf. matu/matte/matimasu (all with the same verb stem mat-) vs. Hepburn matsu/matte/machimasu (with 3 different verb stems)."
Joseph Tomei, who has taught in Japan for over thirty years, describes what happened in practice: "The fight between Hepburn and Kunrei was so bitter and inconclusive that the government, to try and split the baby, had Hepburn for 'outward facing' uses (i.e. when foreigners might use/read it) while Kunrei was for 'inward use'. So transport signage was in Hepburn, but some government documents and other uses was in Kunrei. This was a particular problem when Japanese started getting credit cards, because Shoji Chiba on a passport would be Syozi Tiba and be rejected."
Why Japan Made Hepburn Official in 2025
In August 2025 the Council for Cultural Affairs (文化審議会) recommended that the national romanization rules be based on Hepburn. On December 16, 2025 the cabinet approved a new notice, issued on December 22, that replaces the 1954 rules. It was the first revision in about seventy years.
The council's reasoning was that Hepburn already covered place names, signs, passports and most romanized Japanese you meet in daily life, while the 1954 rules put Kunrei-shiki first. The new rules turn the Kunrei-shiki spellings you saw in the table into Hepburn ones: 富士 is "Fuji" instead of "Huzi," つ is "tsu," じ is "ji," しゃ is "sha."
For learners, your textbook, your dictionary and the station signs now follow the same system as the government's own rules. Small differences remain, such as passport names without long vowels.
How Fink uses Hepburn
Fink shows a pronunciation line in the Insights panel under each Japanese translation, written in Hepburn with macrons for long vowels. The prompt names that scheme, so the spelling stays the same from one translation to the next.
How to use romanization when learning Japanese
The standard advice is to learn hiragana and katakana early, in your first weeks. Treat romanization as a short-term aid until then:
- Sound out a new word from the Hepburn spelling before you check its meaning, so you link the sound to the word.
- Say it aloud. Your mouth needs the practice more than your eyes do.
- Read the kana next to the romanization, and drop the romanization as soon as you can read the kana. Many textbooks stop using it after the first chapters.
- Watch for the patterns: し is "shi," a macron means a long vowel, the particle は is "wa."
How to use a translator to learn a language describes the same loop: look up a word, read the pronunciation, say it, notice the pattern. For Japanese, romanization lets you start that loop before you know the script.
Summary
Hepburn romanization is the most common way to write Japanese in Latin letters. It takes its name from James Curtis Hepburn's dictionary, whose 1886 third edition used the spelling agreed by the Rōmaji-kai in 1885. Hepburn writes Japanese the way an English speaker would pronounce it, so し is "shi" and ち is "chi," although that breaks the regular pattern of the kana table. In December 2025 Japan replaced its Kunrei-shiki-based rules from 1954 with Hepburn-based ones.
Questions people ask about Hepburn romanization
Is Hepburn romanization the same as romaji? Romaji means "Roman letters" and covers every system for writing Japanese in the Latin alphabet. Hepburn is the most widely used one. Kunrei-shiki and Nihon-shiki are romaji too.
Why does Hepburn use "shi" instead of "si"? "Shi" is closer to how し sounds to an English speaker, who would read "si" like the English word "see." Hepburn puts pronunciation ahead of a regular kana mapping, and し is the best-known example.
What's the difference between Hepburn and Kunrei-shiki? Hepburn spells for English pronunciation: し is "shi," ち is "chi," つ is "tsu," ふ is "fu." Kunrei-shiki follows the kana table: し is "si," ち is "ti," つ is "tu," ふ is "hu." Kunrei-shiki was the official system in Japan from 1937 (restated in 1954) until December 2025, when Hepburn-based rules replaced it.
Do I need to learn romanization to learn Japanese? No. It helps during your first weeks, until you can read hiragana and katakana. Most teachers tell you to learn kana early and to stop relying on romaji once you can.
Should I write long vowels with macrons or doubled letters? Both are common. Modified Hepburn uses macrons (obāsan), and many learners and keyboards use doubled vowels (obaasan). Pick one and stick with it. Dropping the length (obasan) gives you a different word.
What is Modified Hepburn? Modified Hepburn, also called Revised Hepburn, is the version most textbooks and dictionaries use today. It comes from a 1908 revision of the 1886 system. The best-known change: it writes ん as "n" before b, m and p, so 新聞 (しんぶん) is "shinbun," where traditional Hepburn wrote "shimbun." It also writes the particle を as "o" instead of "wo." When people say "Hepburn" today, they usually mean Modified Hepburn.
Where is Hepburn romanization used? Road signs, station names, passports, textbooks, most dictionaries and most Japanese you see online. Since December 2025 it is also the basis of Japan's official romanization rules.
Sources and further reading
The system and its history are documented in the Wikipedia articles on Hepburn romanization, James Curtis Hepburn, and Kunrei-shiki romanization. The SLJ FAQ has a detailed entry on what Hepburn romanization is. SWET, the Society of Writers, Editors, and Translators, has an article on Hepburn system romanization, macrons, and flexibility. For the broader context of how pronunciation guidance fits into language learning, see Understanding IPA and How to use a translator to learn a language.