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Number to Words in English, Vietnamese and Chinese
Spell out numbers in English, Vietnamese, Chinese and the Chinese financial capital form.
What is Number to Words in English, Vietnamese and Chinese?
Writing numbers out in words is a requirement on invoices, contracts, payment orders and many accounting documents. The purpose is tamper resistance: adding a digit to a figure is easy, rewriting a whole line of prose is not.
Each language has its own irregularities that make this awkward to automate. English needs hyphens in compound numbers and 'and' placement that varies by region. Vietnamese has sound changes — 15 is 'mười lăm' rather than 'mười năm', 21 is 'hai mươi mốt' rather than 'hai mươi một'. This tool handles those rules properly.
Results appear in four forms at once: English, Vietnamese, standard Chinese, and Chinese capital numerals. That last one is a separate numeral system used in Chinese finance, replacing 一二三 with 壹贰叁 — same anti-tampering purpose as spelling numbers out in words.
How to use
- Type a number into the field. Thousands separators are ignored automatically.
- Click one of the sample numbers to try it quickly.
- Enable the currency option to append a unit.
- Click Copy on whichever language you need.
Frequently asked questions
Does English use 'and' before the tens?
British usage includes it — 'one hundred and one' — while American usage typically omits it. This tool follows British convention, which is also what most international documents use.
What is the maximum number?
Around 15 digits, into the hundreds of trillions. Beyond that, JavaScript can no longer represent integers exactly and the tool warns you.
When are Chinese capital numerals used?
On invoices, cheques and bank documents in China. The characters have far more strokes, making them very hard to alter into a different digit — the same principle as writing amounts in words.
Can it handle decimals?
Integers only for now. Decimal parts are ignored, because how the fractional portion is read varies considerably between contexts — currency, measurements and mathematics each have their own conventions.