Vietnamese number to words converter

Write any amount in Vietnamese words for invoices, receipts and contracts (số tiền bằng chữ), with the English wording alongside for bilingual documents.

Vietnamese + EnglishInvoice-readyFree, no sign-up

Amount

Currency

In words

🇻🇳 Vietnamese

🇬🇧 English

How numbers are written in Vietnamese

1. Vietnamese number rules

  • "Lẻ" / "linh": used when the tens digit is zero, e.g. 105 = một trăm lẻ năm.
  • "Mốt": 1 in the units place becomes "mốt" after twenty, e.g. 21 = hai mươi mốt (but 11 = mười một).
  • "Lăm": 5 in the units place becomes "lăm" after ten, e.g. 15 = mười lăm, 25 = hai mươi lăm.
  • "Không trăm": inner groups keep their hundreds, e.g. 1,005,000 = một triệu không trăm lẻ năm nghìn.

2. Examples

NumberVietnamese
1một
5năm
10mười
15mười lăm
21hai mươi mốt
105một trăm lẻ năm
1,000một nghìn
1,000,000một triệu
1,000,000,000một tỷ

Frequently asked questions

Why must Vietnamese invoices show the amount in words?

Vietnamese invoices, receipts and contracts state the total both in figures and in words ("Số tiền viết bằng chữ"). Writing it out makes it harder to alter the amount and lets both parties check it matches the figures.

Is it "linh" or "lẻ" for numbers like 105?

Both are correct. "Linh" is more common in the north and "lẻ" in the south. Accountants accept either; this tool uses "lẻ".

What does "chẵn" mean at the end?

"Chẵn" means "exactly" (no odd amount). Adding "đồng chẵn" at the end of an amount in words is a common accounting convention, similar to "only" on English cheques.

How are large numbers read in Vietnamese?

Vietnamese groups digits in thousands like English: nghìn (thousand), triệu (million), tỷ (billion). Above a billion it reuses tỷ, so one trillion is "một nghìn tỷ" (one thousand billion).