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Romaji to Hiragana: Conversion Guide

Complete reference for converting romaji (Romanized Japanese) to hiragana. Learn the patterns, exceptions, and when to move beyond romaji entirely.

bokuseki
2026-01-07T01:00:00.000Z
8 min read

Romaji is Japanese written in Roman letters. It's useful for beginners, but you'll want to graduate to reading hiragana directly as soon as possible.

This guide covers the complete romaji-to-hiragana mapping so you can make that transition.


The Basic Pattern

Japanese syllables follow a simple consonant + vowel structure. Each combination maps to one hiragana:

Consonant (k, s, t, n...) + Vowel (a, i, u, e, o) = Hiragana

Exception: The standalone consonant "n" (ん).


Complete Conversion Chart

Vowels (No Consonant)

RomajiHiragana
aあ
iい
uう
eえ
oお

K-Row

RomajiHiragana
kaか
kiき
kuく
keけ
koこ

S-Row

RomajiHiraganaNotes
saさ
si / shiしBoth work
suす
seせ
soそ

T-Row

RomajiHiraganaNotes
taた
ti / chiちBoth work
tu / tsuつBoth work
teて
toと

N-Row

RomajiHiragana
naな
niに
nuぬ
neね
noの

H-Row

RomajiHiraganaNotes
haは
hiひ
hu / fuふBoth work
heへ
hoほ

M-Row

RomajiHiragana
maま
miみ
muむ
meめ
moも

Y-Row

RomajiHiragana
yaや
yuゆ
yoよ

(No yi or ye in modern Japanese)

R-Row

RomajiHiragana
raら
riり
ruる
reれ
roろ

W-Row

RomajiHiragana
waわ
woを

(を is only used as a particle, pronounced "o")

Standalone N

RomajiHiragana
n / nnん

Voiced Consonants (Dakuten)

Adding ゛ to certain kana voices the consonant:

G-Row (Voiced K)

RomajiHiragana
gaが
giぎ
guぐ
geげ
goご

Z-Row (Voiced S)

RomajiHiraganaNotes
zaざ
zi / jiじBoth work
zuず
zeぜ
zoぞ

D-Row (Voiced T)

RomajiHiraganaNotes
daだ
di / jiぢRare, usually じ is used
du / zuづRare, usually ず is used
deで
doど

B-Row (Voiced H)

RomajiHiragana
baば
biび
buぶ
beべ
boぼ

P-Row (Semi-Voiced H)

RomajiHiragana
paぱ
piぴ
puぷ
peぺ
poぽ

Combination Characters (Yōon)

Small や, ゆ, よ combine with i-column kana:

K + Y

RomajiHiragana
kyaきゃ
kyuきゅ
kyoきょ

S + Y / Sh

RomajiHiragana
sha / syaしゃ
shu / syuしゅ
sho / syoしょ

T + Y / Ch

RomajiHiragana
cha / tyaちゃ
chu / tyuちゅ
cho / tyoちょ

N + Y

RomajiHiragana
nyaにゃ
nyuにゅ
nyoにょ

H + Y

RomajiHiragana
hyaひゃ
hyuひゅ
hyoひょ

M + Y

RomajiHiragana
myaみゃ
myuみゅ
myoみょ

R + Y

RomajiHiragana
ryaりゃ
ryuりゅ
ryoりょ

Voiced Combinations

RomajiHiragana
gyaぎゃ
ja / jya / zyaじゃ
byaびゃ
pyaぴゃ

(Same pattern for yu and yo variants)


Special Cases

Double Consonants (っ)

Doubled consonant letters create small っ:

RomajiHiraganaExample
kkっksakka → さっか
ssっszasshi → ざっし
ttっtkitte → きって
ppっpnippon → にっぽん

Long Vowels

Extend the vowel:

RomajiHiragana
aaああ
iiいい
uuうう
eeええ or えい
ooおお or おう

Note: Long "o" is usually おう (ou), not おお.

The "n" Before Vowels

Before vowels or y, use nn or n':

RomajiHiragana
kan'iかんい
shin'youしんよう
konnaこんな

Without the marker, it becomes a different reading:

  • kani = かに (crab)
  • kan'i = かんい (simple)

Romaji Systems

Different systems romanize Japanese differently:

Common Variations

SoundHepburnNihon-shikiKunrei-shiki
しshisisi
ちchititi
つtsututu
ふfuhuhu
じjizizi

Most learning materials and IMEs accept all variants.


Why Move Beyond Romaji

Problems with Romaji

  1. Ambiguity: Multiple ways to write the same sound
  2. Not authentic: Japanese isn't written this way
  3. Slower reading: Extra mental conversion step
  4. Missed nuances: Word boundaries unclear
  5. Bad habits: Pronunciation affected by English reading

The Solution

Learn to read hiragana directly. It takes about 2 weeks of focused practice. After that:

  • Reading becomes faster
  • Pronunciation improves
  • Real Japanese text becomes accessible
  • You can use proper learning materials

Conversion Practice

Exercise 1: Single Characters

Convert these romaji to hiragana:

  1. ka → ?
  2. shi → ?
  3. tsu → ?
  4. ne → ?
  5. fu → ?

Answers: か, し, つ, ね, ふ

Exercise 2: Words

Convert these words:

  1. sakura → ?
  2. nihon → ?
  3. arigatou → ?
  4. sumimasen → ?
  5. konnichiwa → ?

Answers: さくら, にほん, ありがとう, すみません, こんにちは

Exercise 3: With Combinations

  1. kyou → ?
  2. chuugoku → ?
  3. ryokou → ?
  4. jikan → ?
  5. byouin → ?

Answers: きょう, ちゅうごく, りょこう, じかん, びょういん


Practice Resources

Japanese Script Display — See hiragana alongside romaji for any Japanese text. Perfect for learning the conversion.

Keep Learning

  • Learn Hiragana — Master hiragana to move beyond romaji
  • Japanese Typing — Practice romaji-to-kana conversion
  • Hiragana Practice — Drill the hiragana characters

Quick Reference Card

Basic Pattern: consonant + vowel = hiragana

Exceptions to remember:

  • shi (not si), chi (not ti), tsu (not tu), fu (not hu)
  • ji for じ (not zi usually)
  • n before vowels needs nn or n'
  • Double consonants make っ
  • Small ya/yu/yo after i-column kana

When in doubt: Try it in a Japanese IME - it will show you what works.


Ready to read hiragana directly? Start with our Hiragana guide and leave romaji behind.

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