Number to Japanese kanji numerals

Follows Japanese writing rules, such as dropping 一 before 十 and 百 and skipping zeros inside the number. Useful for learners and anyone dealing with Japan.

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How to use it

  1. Enter number and style.
  2. The result appears straight away and updates as you edit.
  3. Copy the result, or copy a link that keeps the same values to share it.

How it is calculated

The number is split into 4-digit groups (兆 = 10^12, 億 = 10^8, 万 = 10^4), each written with 千, 百 and 十. 一 is dropped before 十 and 百, and before 千 in the units group, and zeros are skipped: 2026 = 二千二十六.

Example

Inputs: Number = 12,345,678, Style = Standard kanji (二千二十六). Result: In kanji: 一千二百三十四万五千六百七十八.

Limits and caveats

  • 10,000,000 is written 一千万 here; some write 千万 without 一, and both are correct.
  • Daiji replaces only 一, 二, 三 and 十 (壱 弐 参 拾), as in modern legal use, and keeps 万 as is.

Questions about this tool

Why is there no zero in 二千二十六?

Japanese kanji numbers with unit characters simply skip empty places instead of writing a zero.

What is daiji and when is it used?

Formal characters that resist tampering, used in legal and financial documents and on money gift envelopes.

What are 万, 億 and 兆 worth?

万 is 10,000, 億 is 100,000,000 and 兆 is 1,000,000,000,000.