Number to Words Converter
Convert any number into English words, an ordinal like "twenty-first" or the written amount for a check.
Free · No sign-up · Runs in your browser · Last reviewed November 2026
Advertisement
About the Number to Words Converter
This number to words converter writes any number out in English. It handles whole numbers up to the decillions, negative numbers and decimals, and has two special formats. Ordinal mode turns 21 into "twenty-first". Check amount mode writes the dollar amount the way it is printed on a check, with cents as a fraction over 100, such as "One thousand two hundred thirty-four and 56/100 dollars". Everything runs in your browser.
How to use it
- Type or paste a number. Commas and dollar signs are ignored.
- Choose standard words, ordinal or check amount.
- Press Convert to words to see the result.
Examples
| Number | Standard words | Check amount |
|---|---|---|
| 42 | forty-two | Forty-two and 00/100 dollars |
| 1,250.50 | one thousand two hundred fifty point five zero | One thousand two hundred fifty and 50/100 dollars |
| 1,000,000 | one million | One million and 00/100 dollars |
| -15 | negative fifteen | Negative fifteen and 00/100 dollars |
Writing numbers in words: rules
- Hyphenate compound numbers from 21 to 99, such as thirty-five.
- In American English, "and" is usually left out within the whole-number part, but check amounts use "and" before the cents.
- Large numbers use the short scale: a billion is one thousand million.
- Ordinal numbers end in -st, -nd, -rd or -th in digits, but are written as words like twenty-first.
Where this helps
- Writing checks and legal documents.
- Contracts and invoices that spell out amounts.
- Education and language practice.
- Accessibility and voice applications.
Frequently asked questions
How do I write a number in words?
Break the number into groups of three digits, name each group (hundred, thousand, million) and join them, hyphenating 21 to 99.
How do I write a check amount in words?
Write the whole-dollar amount in words, then "and" and the cents as a fraction over 100, for example "Two hundred and 50/100 dollars".
How do you write 1,000,000 in words?
One million.
What is the largest number this converter supports?
Numbers up to 999 decillion, which is 36 digits.
How do you write ordinal numbers?
Add -th to most numbers (fourth, sixth). The exceptions are first, second, third, fifth, eighth, ninth and twelfth, and numbers ending in -y change to -ieth, as in twentieth.
Last reviewed: November 2026.