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What it does
Spells out a number in English words, or parses number words back into a number, auto-detecting the direction. Handles negative numbers, decimals (spelled digit by digit after "point"), ordinal forms ("twenty-first"), and currency amounts in USD, EUR, or GBP, including the "and 45/100 dollars" style used when writing a check by hand. Integers are supported up to vigintillion, 10 to the 63rd power, using every short-scale name in between.
How to use it
Type a number to spell it out, or paste number words like "one thousand two hundred thirty-four" to parse them back into a number. Turn on a currency to get dollar, euro, or pound amounts with cents or pence spelled out, and turn on check-writing style for the fraction-over-100 format banks expect. The ordinal toggle converts the result to first, second, third, and so on.
Why this one
Most number-to-words tools cap out in the millions or billions, skip ordinals and check-writing format entirely, and only go one direction. This one covers negative numbers, decimals, three currencies, check-writing format, ordinals, and numbers up to vigintillion, plus a words-to-number reverse mode, all client-side with no ads: your files and inputs never leave your device.
FAQ
- How large a number can this tool spell out?
- Up to just under a thousand vigintillion, the largest short-scale name this tool knows, which is 10 to the 63rd power. That covers every named short-scale magnitude in between: thousand, million, billion, trillion, and eighteen more all the way through vigintillion.
- How does check-writing style differ from the regular currency format?
- Regular currency style spells out both the whole amount and the cents, like "one hundred twenty-three dollars and forty-five cents." Check-writing style spells out only the whole amount and writes the cents as a fraction over 100, like "one hundred twenty-three and 45/100 dollars," matching how banks expect a check to be filled out by hand.
- How are decimal numbers that are not currency spelled out?
- Decimals spell out digit by digit after the word "point," so 3.14 becomes "three point one four" rather than being read as a fraction. This matches how numbers like pi or measurements are normally read aloud.
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