Number to words converter

Numbers in words, without slips

Some documents ask for an amount to be written twice: in figures and in words. Checks, contracts, invoices, receipts and legal forms do it because words are harder to alter and easier to check than digits. Writing a long number in words by hand is slow and it is easy to slip on a hyphen or a missing word, so this tool does it for you.

Plain numbers and amounts of money

In plain-number mode, 1,234 becomes one thousand two hundred thirty-four. Decimals are read digit by digit after the word point, so 3.14 becomes three point one four. In money mode, the whole part is written with the name of the currency and the decimals are treated as cents: 1,234.56 becomes one thousand two hundred thirty-four dollars and fifty-six cents. Dollars, euros and pounds are supported, including the singular forms: one dollar, one pound, one cent.

British and American style

American English usually writes a hundred and twenty-three without the word and: one hundred twenty-three. British English puts and before the last part: one hundred and twenty-three. Tick the option that suits your document. Capital letters are also available, which is the usual form on a check.

How large can the number be?

Numbers of up to 18 digits are written exactly, using the short scale in which a billion is a thousand million. Very long numbers are handled without rounding, unlike a spreadsheet, which would lose the last digits. If you copy a number with thousand separators, they are understood: 1,234,567 is read as one million two hundred thirty-four thousand five hundred sixty-seven.

What it does not do

It writes the number you enter, it does not check that an amount is correct or legally valid for your document. Ordinal numbers such as first, second and third are not covered, and fractions are not spelled out. Everything is done in your browser. For the reverse job, turning Roman numerals into digits, see the Roman numeral converter.