Number Formatter - Comma, Currency, and Kanji Formatting

Convert numbers to comma-separated, currency (multiple currencies), and kanji formats (standard and formal). Useful for financial documents and formatting checks.

What is Number Formatter?

A number formatting tool that converts numerical values into various display formats. Supports comma separation (Intl.NumberFormat), currency formats (JPY, USD, EUR, etc.), and kanji (standard: 一二三 / formal: 壱弐参).

How to Use

  1. Enter a number
  2. Select the format type (comma, currency, or kanji)
  3. Click the copy button to copy the result

FAQ

What is 'daiji' (formal kanji)?
Formal kanji numerals (壱弐参...) are used in financial and legal documents to prevent alteration of numbers.
Which currencies are supported?
JPY (Japanese Yen), USD (US Dollar), EUR (Euro), GBP (British Pound), CNY (Chinese Yuan), and KRW (Korean Won).
Can I specify the number of decimal places?
Yes. You can set the number of decimal places to display and format to any precision.
Is my data sent to a server?
No. All processing is done in the browser. The numbers you enter are never sent externally.
Can numbers be converted to Chinese/Japanese numerals?
Yes. Numbers can be converted to formats like 一, 二, 三... or 一万, 二十億, etc.

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Update History

Last Updated: 2026-02-20

  • 2026-02-20 Initial release