Number to Words Converter
Convert numbers to English words — cardinal, ordinal (first, second…), and currency (dollars & cents)
About this tool
This tool spells out a number in English words — used for writing checks, filling out legal or financial forms, generating invoice prose, and educational exercises. Three modes cover the common use cases:
- Cardinal — standard number words.
1234→ one thousand, two hundred thirty-four. Supports decimals with "point" notation. - Ordinal — ranking words.
42→ forty-second,11→ eleventh. Handles irregular forms (first, second, third, fifth, eighth, ninth, twelfth) and the -ty → -tieth rule. - Currency — check-writing prose.
1234.56→ one thousand, two hundred thirty-four dollars and fifty-six cents. Always includes the cents part for formal check-writing.
Toggle Title Case to capitalize the first letter of every word — helpful for formal document headings. Commas and spaces in the input are ignored so you can paste 1,234,567 directly.
FAQ
What is the largest number it can handle? ›
Up into the trillions (15 digits before the decimal point). Beyond that you get an approximation because JavaScript integers lose precision at 16+ digits.
What are the three modes? ›
Cardinal spells numbers normally (one, two, three). Ordinal produces ranking words (first, second, third, twenty-first). Currency formats amounts for check-writing with dollars and cents (one thousand, two hundred thirty-four dollars and fifty-six cents). Use the dropdown above the input to switch.
How are decimal numbers handled in cardinal mode? ›
The integer part is spelled out (e.g. "forty-two"), then the word "point" followed by each decimal digit individually (e.g. "point five"). This is the standard convention for reading numbers aloud and for check-writing.
How are ordinal numbers formed? ›
The tool applies standard English rules: most numbers just add "th" (four → fourth). Irregular forms like first, second, third, fifth, eighth, ninth, and twelfth are handled explicitly. Numbers ending in -ty become -tieth (twenty → twentieth), and those ending in -ve become -fth (five → fifth, twelve → twelfth).
Does it follow the UK or US style? ›
The output uses US conventions: "billion" means a thousand million (10⁹), and commas separate every group of three digits in the words ("one thousand, two hundred"). Numbers are hyphenated following standard English rules ("twenty-five").
Can I share a specific number conversion? ›
Yes. Click the 🔗 Share button next to the input to copy a URL that loads the tool with your number and mode pre-filled. The URL updates automatically as you type, so you can also just copy the browser address bar.
Do you have a Roman numeral converter too? ›
Yes — see the <a href="/tools/roman-numeral-converter/">Roman Numeral Converter</a> for converting numbers to Roman numerals (and back). Unlike this tool which spells numbers as English words, the Roman converter uses the seven-letter Roman system (I, V, X, L, C, D, M) with support for vinculum (overbar) notation up to 3,999,999.