Number to Words Converter

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Convert numbers to words and words back to numbers, with cardinal, ordinal and currency (cents) phrasing. Handles very large numbers instantly in your browser. Free.

Spaces, commas and underscores are ignored. Up to 66 digits before the decimal point.
Type a number in plain English. Decimals as "point", e.g. "three point one four".
Result
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Short scale (US/UK modern): thousand, million, billion, trillion… Everything is computed locally in your browser — nothing is uploaded.

About Number to Words Converter

The number to words converter spells out any number in plain English — and works in reverse, parsing typed words like “one million two hundred thirty-four thousand” back into digits. It handles up to 66 digits before the decimal point, with decimals read out digit by digit after the word “point”.

Three phrasing styles cover the common uses: cardinal (one, two, three), ordinal (first, second, third) and currency, which appends your own unit and subunit words for check-writing amounts like “dollars and cents”. Options toggle the British-style “and”, capitalization of the first letter and hyphenation of numbers such as twenty-one.

Names follow the short scale used in modern US and UK English — thousand, million, billion, trillion and beyond. Everything is computed locally in your browser, making this free tool safe for spelling out invoice totals, legal amounts and homework answers alike.

How to use Number to Words Converter

  1. Choose the direction: number to words, or words to number.
  2. Type the number (separators are ignored) or the words in plain English.
  3. Pick the phrasing: cardinal, ordinal or currency — adding your unit and subunit words for currency.
  4. Toggle the “and”, capitalization and hyphenation options to match your style guide.
  5. Read the result and copy it with one click.

Frequently asked questions

Choose the currency phrasing, enter the amount and set your unit and subunit words. 1,234.56 becomes “one thousand two hundred thirty-four dollars and fifty-six cents”, ready to copy onto the check.

Yes. Switch to words-to-number mode and type a phrase like “three point one four” or “two hundred and seven thousand”. Misspellings are flagged with a clear error rather than a wrong guess.

British English typically says “one hundred and one”, while American style guides omit the “and”. The option toggles between the two conventions, so the output matches your audience.

Up to 66 digits before the decimal point — well beyond a vigintillion on the short scale. Larger inputs are declined with a message instead of producing an incorrect name.

Cardinal numbers count quantities: one, two, three. Ordinal numbers rank positions: first, second, third. Pick ordinal when writing dates, rankings or anniversaries, cardinal for everything else.
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