Number to Words Converter
Convert any number into words in Vietnamese or English — including money amounts (đọc số tiền thành chữ), large numbers, decimals and thousands separators. Great for invoices and contracts.
Supports very large numbers, decimals and thousands separators.
About this tool
The Number to Words Converter spells out any number in full words, in both Vietnamese and English. It covers whole numbers, decimals and money amounts, so "1250000" becomes a readable phrase instead of a string of digits.
Reading amounts as words is a legal and practical requirement on invoices, cheques and contracts, where the written form removes any doubt about the figure. This tool does the tedious spelling for you in a fraction of a second.
How to use
- Enter or paste the number you want to convert.
- Select the language — Vietnamese or English — for the output.
- Read the spelled-out result that appears immediately.
- For money, the amount is written in words as it would appear on an invoice or contract.
- Copy the words and paste them into your document.
Features
- Supports both Vietnamese and English spelling conventions.
- Handles very large numbers into the millions and billions.
- Reads decimals and fractional parts correctly.
- Understands thousands separators, so pasted amounts from spreadsheets work.
- Produces text suitable for invoices, cheques and contracts.
- Instant conversion with no page reload.
Frequently asked questions
Is my data kept private?
Yes. The conversion is computed in your browser only. No number or amount is transmitted to any server.
Can it read money amounts in Vietnamese?
Yes. It spells amounts the way they appear on Vietnamese invoices and contracts, which is one of its most common uses.
What is the largest number it can convert?
It handles values into the billions, covering the range needed for typical financial documents.
Does it handle decimals?
Yes. The whole part and the fractional part are both spelled out according to the selected language.
Can I paste a number with commas or dots as separators?
Yes. Common thousands separators are recognised and ignored, so amounts copied from Excel convert cleanly.