Number to words

Numbers written out in words

Type a number and it appears in words, ready to copy. Two modes are available: a plain number, and an amount for an invoice or a cheque, where the decimal part becomes cents.

The written form follows British usage: “and” before the last pair of digits, a hyphen in twenty-one, so 1,342.50 reads “one thousand three hundred and forty-two dollars and 50 cents”. Cents stay as digits, which is how they appear on paperwork and is harder to misread.

Everything runs in your browser, so an amount from a contract never leaves your computer.

Frequently asked questions

Why do amounts still need words?

On cheques and many invoices the written amount is what counts if the digits are disputed: it is far harder to alter “two thousand” than to add a zero to 2,000.

What happens to the decimals in number mode?

They are dropped. Number mode writes whole numbers, so 12.9 comes out as “twelve”. Use the amount mode when the decimal part matters.

How large a number can it handle?

Up to one trillion. Above that the tool says so instead of producing a string nobody would read anyway.

Are the cents rounded?

Yes, to the nearest cent, and the rounding cannot overflow: 9.999 comes out as “ten dollars”, not “nine dollars and 100 cents”.