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Hiragana vs Katakana: what’s the difference?

Two scripts, the same 46 sounds, two different jobs. Here’s the plain-English version — with a full side-by-side chart, when to reach for each, the shapes that look alike across the two, and which one to learn first.

The short answer

Japanese is written with three scripts: hiragana, katakana and kanji. The first two are collectively called kana, and they are two alphabets for the very same set of syllables. あ and ア are both “a”; か and カ are both “ka”. What changes is the shape and the job:

あ Hiragana	Rounded and flowing. The default script — native Japanese words, all the grammar (verb endings, particles like は and を), and the reading aids printed over kanji (furigana).
ア Katakana	Sharp and angular. The “special use” script — foreign loanwords, foreign names, onomatopoeia, scientific names, and words set apart for emphasis (like italics in English).

So they aren’t alternatives you choose between for the same word — each has its own territory. A normal sentence weaves hiragana and kanji together, and drops into katakana whenever a borrowed or foreign word shows up.

Same sounds, two sets of shapes

Both scripts fill the identical five-vowel grid called the gojūon. Reading across, the vowel order is always a – i – u – e – o. Here is every base sound written both ways:

In each cell: hiragana on top, katakana below, romaji underneath.

Every base sound, written both ways — hiragana (top) and katakana (bottom), with romaji

	a	i	u	e	o
–	あアa	いイi	うウu	えエe	おオo
k	かカka	きキki	くクku	けケke	こコko
s	さサsa	しシshi	すスsu	せセse	そソso
t	たタta	ちチchi	つツtsu	てテte	とトto
n	なナna	にニni	ぬヌnu	ねネne	のノno
h	はハha	ひヒhi	ふフfu	へヘhe	ほホho
m	まマma	みミmi	むムmu	めメme	もモmo
y	やヤya		ゆユyu		よヨyo
r	らラra	りリri	るルru	れレre	ろロro
w	わワwa				をヲwo
n	んンn

Beyond these 46, both scripts share the same extensions: two small strokes (dakuten) or a small circle (handakuten) to voice a consonant (k→g, h→b/p…), and a small や ゆ よ / ャ ュ ョ to form blended sounds like “kya” and “sho”. Learn the system once and it carries across both alphabets.

When do you use each?

あ Hiragana is for…

• Native Japanese words that aren’t written in kanji — e.g. たべる (taberu, to eat).
• Grammar: verb and adjective endings that change with tense, and particles — the little words like は (wa), が (ga), を (o) that mark who’s doing what.
• Furigana: the tiny kana printed above kanji to show how to read them.

ア Katakana is for…

• Loanwords from other languages — コーヒー (kōhī, coffee), テレビ (terebi, TV), パン (pan, bread, from Portuguese).
• Foreign names — people, countries, brands: アメリカ (Amerika), マリア (Maria).
• Onomatopoeia and sound effects, especially in manga: ワンワン (a dog’s bark).
• Emphasis and the scientific names of plants and animals.

The differences that actually trip people up

	Hiragana	Katakana
Feel of the strokes	Curvy, rounded, flowing	Sharp, straight, angular
How long vowels are written	Spelled out with an extra vowel kana (おかあさん)	A single bar ー (コーヒー)
How often you see it	Everywhere — the backbone of every sentence	Sprinkled in for borrowed & foreign words
Foreign-sound kana (fa, ti, che…)	Not used	Extended combinations exist just for this

That long-vowel difference is the big one in daily reading: katakana’s bar ー simply means “hold the previous vowel.” Miss it and ビール (bīru, beer) reads like ビル (biru, building).

Shapes that look alike across the two scripts

Most hiragana and katakana for the same sound look nothing alike — but a few are suspiciously close, which is either a freebie or a trap depending on how you look at it:

• へ / ヘ (he) — essentially identical. A genuine free character.
• り / リ (ri) — very close; the katakana is just two straighter strokes.
• か / カ (ka) and や / ヤ (ya) — share a clear family resemblance.
• せ / セ (se) and も / モ (mo) — close enough to lean on.

Within katakana, watch the internal lookalikes instead — シ/ツ and ソ/ン. The katakana guide breaks those down stroke by stroke.

Which should you learn first?

Hiragana, almost always. It shows up far more often, it carries all the grammar, and — because katakana maps to the exact same sounds — the second script comes much faster once the first is solid. A sensible path:

1. Hiragana to fluent recognition — you’ll be able to sound out a huge amount of real Japanese.
2. Katakana next — “same sounds, new shapes,” plus the long-vowel bar and the foreign-sound kana.
3. Kanji gradually after, leaning on the kana you now read for furigana.