Number to Words Converter
Write any number out in English words.
Writing out amounts in words is standard on checks and contracts to prevent tampering.
How to use
- Type any number up to 999 billion.
- The English words appear instantly.
- Copy for checks and legal documents.
About this tool
This handles thousands, millions and billions with proper hyphenation-free style.
Converted locally; nothing uploaded.
How it works
Numbers are converted using the short scale (American English): every three digits form a named group — thousand, million, billion, trillion — and each group is spelled out as hundreds, tens, and ones. So 1,234,567 becomes "one million two hundred thirty-four thousand five hundred sixty-seven".
Decimals are read digit by digit after the point (3.14 becomes "three point one four"), and negative numbers get a leading "minus". The tool handles values into the trillions, which covers essentially every real-world check, contract, and invoice.
Worked examples
Check writing: Writing a check for $1,250? The tool gives "one thousand two hundred fifty" for the amount line.
Legal document: Contracts often require amounts in words — convert 250000 to "two hundred fifty thousand" without typos.
Quick reference
| Scale | Value | Example |
|---|---|---|
| Hundred | 10² | five hundred |
| Thousand | 10³ | twelve thousand |
| Million | 10⁶ | three million |
| Billion | 10⁹ | two billion |
| Trillion | 10¹² | one trillion |
Frequently asked questions
What is the maximum number?
999,999,999,999 (999 billion) — beyond that, use scientific notation.
Does it handle decimals?
It converts the whole-number part; cents are usually written as fractions on checks.
Is my input stored?
No.
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