Japanese in Alphabetic Notation

あ	A	い	I	う	U	え	E	お	O
か	KA	き	KI	く	KU	け	KE	こ	KO
さ	SA	し	SHI	す	SU	せ	SE	そ	SO
た	TA	ち	CHI	つ	TSU	て	TE	と	TO
な	NA	に	NI	ぬ	NU	ね	NE	の	NO
は	HA	ひ	HI	ふ	FU	へ	HE	ほ	HO
ま	MA	み	MI	む	MU	め	ME	も	MO
や	YA	い	I	ゆ	YU	え	E	よ	YO
ら	RA	り	RI	る	RU	れ	RE	ろ	RO
わ	WA	ゐ	I	う	U	ゑ	E	を	O
ん	N (M)
が	GA	ぎ	GI	ぐ	GU	げ	GE	ご	GO
ざ	ZA	じ	JI	ず	ZU	ぜ	ZE	ぞ	ZO
だ	DA	ぢ	JI	づ	ZU	で	DE	ど	DO
ば	BA	び	BI	ぶ	BU	べ	BE	ぼ	BO
ぱ	PA	ぴ	PI	ぷ	PU	ぺ	PE	ぽ	PO
きゃ	KYA	きゅ	KYU	きょ	KYO
しゃ	SHA	しゅ	SHU	しょ	SHO
ちゃ	CHA	ちゅ	CHU	ちょ	CHO
にゃ	NYA	にゅ	NYU	にょ	NYO
ひゃ	HYA	ひゅ	HYU	ひょ	HYO
みゃ	MYA	みゅ	MYU	みょ	MYO
りゃ	RYA	りゅ	RYU	りょ	RYO
ぎゃ	GYA	ぎゅ	GYU	ぎょ	GYO
じゃ	JA	じゅ	JU	じょ	JO
びゃ	BYA	びゅ	BYU	びょ	BYO
ぴゃ	PYA	ぴゅ	PYU	ぴょ	PYO

Warning

Assimilated sounds (geminate consonants) are written in double consonants.
e.g.: 鳥取 TOTTORI, 吉川 KIKKAWA
However, you should put the letter 'T' before these letters; ち(CHI), ちゃ(CHA), ちゅ(CHU), ちょ(CHO).
e.g.: 八丁 HATCHO

Syllabic nasal is written in letter 'M' instead of letter 'N' when followed by letters 'B', 'M' and 'P'
e.g.：難波 NAMBA, 新橋 SHIMBASHI, 本間 HOMMA, 日本橋 NIHOMBASHI

Long sounds are not distinguished in Hepburn romanization.
e.g.：東京 TOKYO, 大阪 OSAKA, 京都 KYOTO
However, if there is 'おう' or 'おお' in your name, you can select one from either 'O' or 'OH' to match the registered name on your passport.
e.g.：河野 KONO/KOHNO, 大野 ONO/OHNO, 加藤 KATO/KATOH