Western to fullwidth digits
Fullwidth digits take the space of a full CJK character, so numbers line up with Asian text in tables and vertical layouts.
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Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.
How to use it
- Enter text or numbers.
- The result appears straight away and updates as you edit.
- Copy the result, or copy a link that keeps the same values to share it.
How it is calculated
Each Western digit d from 0 to 9 is replaced by the Unicode character U+FF10 + d, so 0 becomes U+FF10 and 9 becomes U+FF19. Letters, symbols and spaces stay as they are and the value does not change.
Example
Result: Converted text: Tel ０３-１２３４-５６７８; Digits converted: 10.
Tel 03-1234-5678
Tel ０３-１２３４-５６７８
Limits and caveats
- Only digits change. Latin letters, hyphens and symbols keep their normal width.
- Many web forms reject fullwidth digits, so avoid them for phone numbers typed into websites.
Questions about this tool
How do fullwidth digits differ from normal ones?
The value is the same, but a fullwidth digit is a separate character the width of a CJK character, U+FF10 to U+FF19.
How do I turn fullwidth digits back to normal?
Use the universal digits to Western tool, which recognises fullwidth digits too.
When would I need this?
When typesetting Japanese or Chinese text by hand, or when an Asian system asks for fullwidth number input.