I want to type in numbers on Japanese Kana input keyboard, but it needs alt key to type in numbers. For example, to type in 3, you must type in Alt + 3.

However, this 3 is full-width, and it even does not go into the conversion list mode. So I found that it is not possible to type in the numbers in half-width.

Is this possible in Japanese Kana keyboard?

1 Answer 1


This Apple doc says you should uncheck the box for Full Width numbers in the Japanese keyboard Preferences.

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However this does not seem to work with Kana input (presumably a bug). As a workaround, you can use the Convert Text to Half Width service (turned on in system preferences/keyboard/shortcuts/services).

  • Thanks for the answer but does this really work? In my case, it gets me the full-width (if I use Romaji mode, it turns to the half-width...).
    – Blaszard
    Commented May 31, 2018 at 9:40
  • 1
    Must be a bug with Kana input. You have to use the Convert to Text to Half Width service (turned on in system preferences/keyboard/shortcuts/services) Commented May 31, 2018 at 11:49

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