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Japan Studies: Japanese Language Rules

This page shows you how to get the most from our library resources for finding good information for your research projects.

Romanization of Japanese (romaji)

Table of Modified Hepburn
(Romanaization system used in major databases)
*The letters highlighted in yellow are commonly mistaken.


a


i

u

e

o

ya

yu

yo
か 
ka
き 
ki
く 
ku
け 
ke
こ 
ko
きゃ 
kya
きゅ 
kyu
きょ 
kyo
さ 
sa
し 
shi
す 
su
せ 
se
そ 
so
しゃ 
sha
しゅ 
shu
しょ 
sho
た 
ta
ち 
chi
つ 
tsu
て 
te
と 
to
ちゃ 
cha
ちゅ 
chu
ちょ 
cho
な 
na
に 
ni
ぬ 
nu
ね 
ne
の 
no
にゃ 
nya
にゅ 
nyu
にょ   
nyo
は 
ha
ひ 
hi
 
fu
へ 
he
ほ 
ho
ひゃ 
hya
ひゅ 
hyu
ひょ
hyo
ま 
ma
み 
mi
む 
mu
め 
me
も 
mo
みゃ 
mya
みゅ 
myu
みょ
myo
ら 
ra
り 
ri
る 
ru
れ 
re
ろ 
ro
りゃ 
rya
りゅ 
ryu
りょ 
ryo

wa

n
("は")
wa

(" を")
o

("へ")
e
(ヴァ)
 va
(ヴィ)
vi
(ヴォ)
vo


ga


gi

gu

ge

go
ぎゃ
gya
ぎゅ
gyu
ぎょ
gyo
ざ 
za
じ 
ji

zu
ぜ 
ze

zo
じゃ 
ja
じゅ 
ju
じょ 
jo
だ 
da

ji

zu
で 
de

do
     
ば 
ba
び 
bi
ぶ 
bu
べ 
be
ぼ 
bo
びゃ 
bya
びゅ 
byu
びょ 
byo
ぱ 
pa

pi
ぷ 
pu
ぺ 
pe
ぽ 
po
ぴゃ 
pya
ぴゅ 
pyu
ぴょ 
pyo

Pay special attention to:

  • Long vowels: Omit them.
    • 大阪 (おおさか) Osaka: <wrong> Oosaka / {correct} Osaka 
    • 研究 (けんゅう) research: <wrong> kenkyuu / {correct} kenkyu 
  • Double consonants (small っ): Repeat the succeeding consonant.
    • 日本 (にぽん) Japan: Nippon
    • トドグ hotdog: hottodoggu
      • Exception: Double consonants "cc" are transcribed as "tc."
        • 一丁 (いょう) one piece: <wrong> iccho / {correct} itcho
        • 坊ちゃん (ぼちゃん) a boy: <wrong> bocchan / {correct} botcha
  • "" is always transcribed as "n," not "m."
    • 新聞 (し) newspaper: <wrong> shimbun / {correct} shinbun
    • 短編 (た) a short story: <wrong> tampen / {correct} tanpen
  • A continuous string of Japanese words must be divided into word units.
    • 日本の政治と社会 Japanese politics and society: Nihon no seiji to shakai
    • 日本史 Japanese history: Nihon shi

*To maximize your search results, input different romanized forms or word divisions. For example, "nihon shi" and "nihonshi" for 日本史.

*See this ALA-LC PDF guideline on Japanese romanization (American Library Association-Library Congress, revised March 2012) for more about the word division, capitalization and use of hyphens.