About Number to Words
Convert numbers to English words. Handles thousands, millions, billions, decimal points, negatives, and currency mode (cents rendered as fractions). Useful for cheques, legal documents, invoice text, and any context where a number needs spelling out.
When you need this
- Writing a cheque. “Pay to the order of: One thousand two hundred fifty and 00/100 dollars.”
- Legal documents. “The party agrees to pay the sum of fifty thousand United States dollars ($50,000)…”
- Tax filings. Some lines require both numeric and written forms.
- Voice generation. Reading numbers aloud in TTS without weird pacing.
- Educational use. Spelling drills.
Common workflows
Cheque amount. $1,250.50 → “One thousand two hundred fifty and 50/100”.
Contract clause. $50,000 → “fifty thousand dollars (50,000)”.
Invoice text. Total $789.42 → “Seven hundred eighty-nine dollars and 42/100”.
Round numbers in marketing. 1,000,000 → “one million users”. Reads cleaner than digits.
Frequently asked questions
How does currency mode differ?
Default mode renders
1234.56 as "one thousand two hundred thirty-four point five six". Currency mode renders "one thousand two hundred thirty-four dollars and 56/100" — the standard cheque-writing form.How big can it go?
Up to 999,999,999,999,999 (quadrillion). Above that, scientific notation is more practical than spelled words.
Negatives?
Prefixed with "negative" — "negative forty-two".
What about other languages?
English only. For other languages, locale-aware tools handle grammar (gender, declension, ordinal forms) better.
Decimal precision?
Up to 10 decimal digits. Each digit is read individually: "three point one four one five nine" for π.
Hyphenation?
Compound numbers 21-99 are hyphenated — "twenty-one", "ninety-nine". Standard English convention.
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Last updated: 2025-01-15