Convert any number to English words instantly. Supports integers, decimals, ordinals, and currency amounts. Handles up to decillions.
This converter turns any number into clear English words — from small integers all the way up to decillions (10³³). Pick Cardinal mode for ordinary spelling ("one hundred and twenty-three"), Ordinal mode for positions ("first", "second", "twenty-first"), or Currency mode to write amounts the way you'd put them on a cheque or invoice.
It handles big numbers using BigInt and the American short scale (billion = 10⁹, trillion = 10¹²), reads decimals digit-by-digit, and spells out currency amounts in dollars, pounds, euros, rupees or yen. People use it to:
Everything runs locally and in-browser. Your numbers are converted on your own device, nothing is uploaded to a server, and the tool keeps working even offline once the page has loaded.
Switch to Currency mode, pick your currency, and type the amount with the pence or cents after the decimal point, for example 1234.56. The tool returns "One Thousand Two Hundred and Thirty-Four Dollars and Fifty-Six Cents" — copy it straight onto the cheque.
Yes. Choose Ordinal mode and enter a number; 1 becomes "first", 3 becomes "third", 21 becomes "twenty-first" and so on. Ordinals are handy for dates, rankings and numbered lists.
In Cardinal and Ordinal modes the decimal part is read digit-by-digit after the word "point" — so 3.14 becomes "three point one four". In Currency mode the two digits after the point are instead treated as cents, pence or paise.
It spells amounts out for cheques, invoices and formal documents, using the major and minor units of the currency you pick — dollars and cents, pounds and pence, euros and cents, rupees and paise, or whole yen (which has no minor unit).
Up to decillions (10³³). The integer part is handled with BigInt, so very large whole numbers convert exactly without rounding, using names like million, billion, trillion and beyond.
It includes the word "and" in British style — "one hundred and twenty-three" — rather than the American "one hundred twenty-three". The number names themselves use the American short scale (billion = 10⁹, trillion = 10¹²).
Yes — start the number with a minus sign and the result is prefixed with "negative". Nothing is uploaded: all conversion happens locally in your browser, so your numbers stay private and the tool works offline.