What range of numbers is supported?

Whole numbers from -999,999,999,999 to 999,999,999,999. Decimals aren't converted — round or split them first.

Does it add 'and' (e.g. 'one hundred and one')?

No, it uses the American style without 'and' — 'one hundred one'. The British style with 'and' may be added later.

Is this useful for cheques?

Yes — spelling out the amount in words is exactly what cheques, invoices and legal forms require. Copy the words straight into your document.

When do you hyphenate numbers in words?

Hyphenate compound numbers from twenty-one to ninety-nine — twenty-one, thirty-eight, ninety-nine — whenever they appear as the tens-and-ones part of a larger number, such as one hundred twenty-one. Round tens like twenty, thirty and forty, and the teens (eleven through nineteen), are single words with no hyphen.

Number to Words

Type a number and see it spelled out in English words — useful for writing cheques, invoices, contracts and forms.

Number

In words

One thousand two hundred thirty-four

How to use it

Converting a number into words means writing out its value in plain English instead of digits — 1234 becomes 'one thousand two hundred thirty-four'. This matters wherever a number must be unambiguous: cheques and money orders require the amount spelled out in words so it can't be altered by adding a digit, legal documents and invoices often ask for the figure and the words side by side, and formal writing style guides call for small numbers to be spelled out rather than written as digits. Spelling out numbers is also a common teaching tool for place value, and a genuine accessibility win — a screen reader announces '1234' very differently from 'one thousand two hundred thirty-four', and the words are easier for many listeners to follow at speed. English groups digits into sets of three, separated by commas in figures and by a name in words: thousands, then millions, then billions, then trillions. Each group of three is read the same way internally — hundreds, tens and ones — before its group name is appended. So 1,234,567 splits into 1 (million), 234 (thousand) and 567 (ones), read as 'one million two hundred thirty-four thousand five hundred sixty-seven'. Compound numbers from twenty-one to ninety-nine take a hyphen — twenty-one, forty-five, ninety-nine — while round tens like twenty, thirty and forty, and the numbers eleven through nineteen, are single words with no hyphen. A couple of worked examples show the pattern clearly. 1234 becomes 'one thousand two hundred thirty-four'. 1000000 — one followed by six zeros — becomes simply 'one million', since every group inside it is zero except the millions group itself. Negative numbers get a leading 'negative', so -42 becomes 'negative forty-two'. To use the tool, type or paste a whole number into the input box. The words appear immediately below, already capitalized and ready to copy. Click Copy to place the text on your clipboard, then paste it straight into a cheque, invoice or document. Style conventions vary slightly by region. British English traditionally inserts 'and' before the final group — 'one hundred and one' — while American English usually drops it — 'one hundred one'. Cheques and currency amounts are often written with the whole-number part in words followed by the cents as a fraction, for example 'One thousand two hundred thirty-four and 00/100'. This tool uses the American style without 'and'; add it yourself if your cheque or form requires British phrasing.

Frequently asked questions

What range of numbers is supported?: Whole numbers from -999,999,999,999 to 999,999,999,999. Decimals aren't converted — round or split them first.
Does it add 'and' (e.g. 'one hundred and one')?: No, it uses the American style without 'and' — 'one hundred one'. The British style with 'and' may be added later.
Is this useful for cheques?: Yes — spelling out the amount in words is exactly what cheques, invoices and legal forms require. Copy the words straight into your document.
When do you hyphenate numbers in words?: Hyphenate compound numbers from twenty-one to ninety-nine — twenty-one, thirty-eight, ninety-nine — whenever they appear as the tens-and-ones part of a larger number, such as one hundred twenty-one. Round tens like twenty, thirty and forty, and the teens (eleven through nineteen), are single words with no hyphen.