Convert any number to English words instantly. Supports cardinal (one hundred), ordinal (one hundred and first), currency (one hundred dollars and twenty-five cents), and check-writing format. Handles numbers up to vigintillions.
Type any integer or decimal number. Commas and spaces are ignored so you can paste formatted numbers like 1,234,567.89. Negative numbers are supported. Numbers up to vigintillions (10⁶³) are handled.
Select Cardinal (standard number words), Ordinal (first, second, third…), Currency (dollars and cents), or Check format (as written on a bank cheque). All four are shown simultaneously for comparison.
Click Copy next to any output format. The result updates instantly as you type. Useful for writing formal documents, cheques, legal agreements, or educational worksheets.
Cardinal numbers express quantity: one, two, three, four. They answer the question "how many?". Ordinal numbers express position or rank: first, second, third, fourth. They answer the question "which one in a sequence?". This tool converts to both: 5 → "five" (cardinal) and "fifth" (ordinal). Ordinals are used for dates, rankings, positions, and sequential items.
Currency format writes the amount as "X dollars and Y cents" (e.g. "one hundred twenty-five dollars and fifty cents"). Check-writing format is more formal and uses "and" before the cents fraction as written on bank cheques: "one hundred twenty-five and 50/100 dollars". The fraction notation (50/100) is used because cheque amounts in the fractional cent portion are typically written as a fraction of 100 for clarity and forgery prevention.
A vigintillion is 10⁶³ in the short scale (US/UK system). This tool supports numbers up to 999 vigintillion, which is an astronomically large number. For context: a trillion = 10¹², a quadrillion = 10¹⁵, a quintillion = 10¹⁸. The scale continues: sextillion, septillion, octillion, nonillion, decillion, undecillion, duodecillion, tredecillion, quattuordecillion, quindecillion, sexdecillion, septendecillion, octodecillion, novemdecillion, vigintillion.
Yes — decimal numbers are converted with the fractional part read as individual digits. For example, 3.14 → "three point one four". In currency mode, the decimal is interpreted as cents (up to 2 decimal places): 3.14 → "three dollars and fourteen cents". For check format: "three and 14/100 dollars".
Legal and financial documents often require amounts in words to prevent fraud or misreading (contracts, cheques, invoices). Educational worksheets for practising large number names. Formal writing standards for numbers below ten or for beginning sentences. Accessibility features (text-to-speech systems read digit sequences differently from words). Internationalisation systems that need human-readable number representations.
The output uses the short scale (used in the US, UK since the 1970s, and most English-speaking countries): billion = 10⁹, trillion = 10¹². British English traditionally used the long scale (billion = 10¹²), but modern UK usage has adopted the short scale. The tool uses "and" before the tens in hundreds (e.g. "one hundred and twenty-five") which is standard British English — US style sometimes omits "and".
