Number to Words Converter

The Number to Words Converter spells out any number in correct English, instantly as you type. Enter 1234.56 and you get every form you might need at once: “one thousand two hundred thirty-four point five six” in American English, “one thousand two hundred and thirty-four point five six” in British English, a Title Case version for headings, “one thousand two hundred thirty-four dollars and fifty-six cents” for an invoice, and the exact check line — “one thousand two hundred thirty-four and 56/100 dollars”. Each version has its own Copy button.

Whole numbers get one more form: the ordinal. Type 21 and you also get “twenty-first (21st)” — including the awkward cases English hides in plain sight, where 11, 12 and 13 take th while 21, 22 and 23 take st, nd and rd. That is the detail people most often get wrong when writing out a date, a rank or a clause number by hand.

American and British English genuinely differ, and the difference is one word. American style keeps “and” for the decimal point or the cents, so 101 is “one hundred one”. British style puts an “and” before the last part of the number: “one hundred and one”, “two thousand and five”, “one thousand two hundred and thirty-four”. Both are correct in their own dialect, and picking the wrong one in a contract or an exam answer looks like a mistake — so the tool shows the British form as its own row whenever it differs, rather than making you edit the American one.

The other rule worth knowing is hyphenation: compound numbers from twenty-one through ninety-nine take a hyphen, so it is “forty-two”, “seventy-eight thousand” and “nine hundred ninety-nine”. Hundreds, thousands and millions never do. The converter applies this automatically everywhere, including inside the check and currency lines.

Money gets its own careful treatment. Banks want the dollars in words followed by the cents as a fraction of a hundred — “one hundred twenty and 50/100 dollars” — because a fraction is much harder to alter than a written-out word. The converter builds that line, and separately the natural-language form (“one hundred twenty dollars and fifty cents”) for invoices and letters. Both money rows disappear when you type more than two decimal places: 0.614 is not an amount of money, and rounding it into “sixty-one cents” without telling you would be inventing an answer.

Input is forgiving, because real numbers arrive messy. Thousands separators, spaces, a leading $, £ or €, and even an ordinal suffix you have already typed (21st, 3rd) are all accepted and stripped. Negative values read as “minus”, decimals are read digit by digit the way English actually says them (“point six one four”, not “point six hundred fourteen”), and the whole-number part can be up to 18 digits — 999 quadrillion and change. Everything is computed in your browser as you type; nothing is uploaded.

Spelling numbers out matters more often than you would guess. Checks carry the amount in words, and a mismatch between the digits and the words gets them rejected. Contracts and formal notices spell amounts out to prevent tampering and ambiguity. Style guides ask writers to spell out small numbers and any number that opens a sentence. Invoices, wedding invitations, legal clauses, exam papers and teaching materials all call for numbers as words — and “fourty” or a missing hyphen is exactly the kind of typo a reader notices.

How to use

1. Type or paste your number — commas, spaces and a leading $, £ or € are fine (e.g. $1,234.56).
2. Read the rows: American English, British English (when it differs), Title Case, the ordinal, dollars and cents, and the US check line.
3. Click Copy next to the version you need.
4. For a check, copy the “US check amount” line onto the written-amount line and write the digits in the box.
5. For a date or a rank, copy the Ordinal row — it gives both the words and the 21st/22nd/23rd form.

Examples

Frequently asked questions