Guide · 5 min read
How to Type Katakana (and the Long Vowel ー)
Good news: if you can type hiragana, you can already type katakana — the romaji is identical. ka makes か in hiragana mode and カ in katakana; same keys, same rules. What's new is how you get katakana out of the IME, one extra character (the long vowel bar ー), and a set of foreign-sound combos. This guide covers all three.
Three ways to produce katakana
- Let conversion do it (most common). Type the word in normal Japanese mode and press Space — loanwords convert to katakana automatically, because the IME knows
koohii… wait, you typedko-hi-→ こーひー → Space → コーヒー. For everyday words, this is all you need. - F7.Typed something the IME won't convert — a name, a made-up word, slang? Press F7 before confirming and the whole phrase flips to katakana. (F6 flips it back to hiragana; on macOS, Ctrl+Shift+K / Ctrl+Shift+J do the same.)
- Katakana input mode. IMEs offer a dedicated katakana mode, but almost nobody uses it — conversion and F7 are faster than switching modes back and forth.
The long vowel bar ー is the hyphen key
Katakana writes long vowels with ー (the chōonpu), and you type it with the hyphen/minus key:
| Word | Meaning | You type |
|---|---|---|
| コーヒー | coffee | ko-hi- |
| ケーキ | cake | ke-ki |
| ラーメン | ramen | ra-menn |
| パーティー | party | pa-teli- or pa-thi- |
| スーパー | supermarket | su-pa- |
This is the single biggest difference from hiragana, where long vowels are spelled out kana by kana (おう = ou). In katakana, when you hear a stretched vowel, reach for the hyphen.
Foreign sound combos
Katakana represents sounds Japanese didn't originally have by pairing a full-size character with a small vowel. Most have intuitive romaji:
| Kana | Sound | You type | Example |
|---|---|---|---|
| ファ フィ フェ フォ | fa fi fe fo | fa fi fe fo | ファン fan |
| ウィ ウェ | wi we | wi we | ウェブ web |
| シェ ジェ チェ | she je che | she je che | チェック check |
| ティ ディ | ti di | thi dhi (or teli deli) | ティー tea |
| ヴ | v | vu | ヴァイオリン violin |
The small-kana escape hatch works here too: l or x before any kana makes it small (lI → ィ), so you can build any combination manually if a spelling escapes you.
Everything else carries over
The small ッ is still a doubled consonant (サッカー soccer = sakka-), ン is still nn, and combination sounds still type as units (シャ = sha). If any of those rules feel shaky, the っ/ん guide has you covered.
The mistakes everyone makes at first
- Spelling the English word instead of the Japanese sound. コーヒー is
ko-hi-, not "coffee". Loanwords were re-shaped to Japanese phonetics — type what Japanese ears hear, not what English spells. - Forgetting the bar. ビル (biru) is a building; ビール (bi-ru) is a beer. Long vowels change meanings, and the hyphen key is load-bearing.
- Using
oufor long o. In katakana, long o is the bar: ノート =no-to. The hiragana habit ofoudoesn't carry over. - Confusing ソ/ン and シ/ツ. Not a typing problem — a reading one. The fix is volume: a few days of loanword drills and your eyes stop needing to check.
Practice with words you already know
Katakana drills are the most fun in Japanese typing, because the words are old friends in new clothes: アイス, ホテル, アニメ, バス. Read the full chart in our katakana chart with romaji, then type your way through the loanwords below.