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Chinese Formal Numeral (大写) Converter

Convert amounts into Chinese formal numerals (大写: 壹贰叁...) used on invoices, receipts, and contracts in China, Taiwan, and Hong Kong.

What are Chinese Formal Numerals (大写)?

In China, Taiwan, and Hong Kong, financial documents such as invoices (发票), receipts, contracts, and bank forms are required to use formal Chinese numerals (大写 / dàxiě) instead of standard numerals or simplified characters. These complex characters — such as 壹 (1), 贰 (2), 叁 (3) — are deliberately harder to alter, preventing tampering with monetary amounts.

This practice is similar to writing "Amount in Words" in English-speaking countries, but is legally mandated in mainland China for official financial documents. The People's Bank of China and tax authorities require 大写 notation on invoices, checks, and payment orders.

If you are issuing invoices or contracts for Chinese, Taiwanese, or Hong Kong clients, this tool helps you convert any amount into the correct 大写 format with the appropriate currency units (元/圓, 角/毫, 分/仙).

Convert Amount to Formal Characters

Formal Notation (大写):
-

About This Tool

In China, Taiwan, and Hong Kong, invoices (发票), receipts, and contracts require amounts to be written in formal Chinese numerals (大写) to prevent tampering. This tool instantly converts any number into the correct formal notation.

Formal vs. Standard Numerals

Arabic0123456789
Standard (小写)〇一二三四五六七八九
Formal (大写)零壹贰叁肆伍陆柒捌玖

Place Value Units

  • 拾 (shí) = 10
  • 佰 (bǎi) = 100
  • 仟 (qiān) = 1,000
  • 萬 (wàn) = 10,000
  • 亿 (yì) = 100,000,000
  • 兆 (zhào) = 1,000,000,000,000

Currency Units

  • Chinese Yuan (CNY): 元 (yuan), 角 (jiǎo = 1/10), 分 (fēn = 1/100). Ends with 整 (zhěng) when no decimals
  • New Taiwan Dollar (TWD): 圓, 角, 分
  • Hong Kong Dollar (HKD): 圓, 毫 (háo = 1/10), 仙 (xiān = 1/100)
  • Japanese Yen (JPY): No decimals, ends with 也

Examples

  • 1,234,567 CNY → 壹佰贰拾叁萬肆仟伍佰陆拾柒元整
  • 10,005 CNY → 壹萬零伍元整 (consecutive zeros become a single 零)
  • 100,000,000 CNY → 壹亿元整
  • 500.25 CNY → 伍佰元贰角伍分
  • 1,000,000 JPY → 壹佰萬円也

Note: There are regional variations in formal numeral conventions (simplified vs. traditional characters, 伍 vs. 五, 陆 vs. 陸). This tool uses simplified Chinese (大写) as standard in mainland China. For Taiwan, please verify with your trading partner's preferred traditional character format.

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