Number to Words Converter
Convert any number to its written word form. Perfect for checks, legal documents, and formal writing.
Enter any number up to 999 quadrillion (supports decimals, negatives, and commas)
One thousand two hundred thirty four
Common Numbers
Ordinal Examples
How to Convert Numbers to Words
Converting numbers to their written word form is essential for writing checks, creating legal documents, drafting contracts, and producing formal announcements. Banks require check amounts in both numeric form ($1,234.56) and written form ("one thousand two hundred thirty-four dollars and fifty-six cents") to prevent fraud and ensure clarity. Legal contracts spell out monetary amounts to avoid disputes over interpretation—a handwritten "1" could be mistaken for "7", but "one thousand" is unambiguous.
Our free number to words converter handles all number formats: whole numbers (1234 → "one thousand two hundred thirty-four"), decimals (3.14 → "three point one four"), negative numbers (-25 → "negative twenty-five"), and currency amounts ($99.99 → "ninety-nine dollars and ninety-nine cents"). The tool supports numbers up to 999 quadrillion, covering every practical use case from personal checks to billion-dollar corporate contracts. All conversions happen instantly in your browser—no server uploads mean your financial information stays completely private.
When to Use Number to Words Conversion
- 1.Writing Checks - Banks require the payment amount written in both numbers and words. On a $1,500 check, you write "1500" in the box and "one thousand five hundred dollars" on the line. The written amount takes precedence if there's a discrepancy, preventing fraud from altered numeric amounts.
- 2.Legal Contracts & Agreements - Contracts spell out monetary amounts, dates, and quantities to eliminate ambiguity. "The seller shall pay buyer $250,000 (two hundred fifty thousand dollars)" ensures both parties agree on the exact amount, preventing disputes over misread numbers or typos.
- 3.Formal Invitations & Announcements - Wedding invitations, graduation announcements, and formal event invitations traditionally spell out dates and times: "Saturday, the twenty-first of June, two thousand twenty-four at half past six in the evening" appears more elegant than "6/21/2024 6:30 PM".
- 4.Financial Documents & Reports - Annual reports, shareholder letters, and financial statements often spell out significant figures: "Revenue increased to $5.2 billion (five point two billion dollars)" for emphasis and formality, especially in executive summaries and press releases.
Number to Words Conversion Rules
English number words follow consistent patterns based on place value. Numbers 1-9 use basic words (one, two, three), while 10-19 have unique names (ten, eleven, twelve, thirteen). Numbers 20-99 combine tens words (twenty, thirty, forty) with ones (twenty-one, forty-five). Hundreds use "hundred" (two hundred), thousands use "thousand" (five thousand), and larger numbers follow the same pattern with million, billion, trillion, and quadrillion.
Decimals are expressed by saying "point" followed by each digit: 3.14 becomes "three point one four". For currency, the format changes: $125.50 becomes "one hundred twenty-five dollars and fifty cents". Negative numbers add "negative" before the number: -42 becomes "negative forty-two". Ordinal numbers (showing position) have special endings: 1st = "first", 2nd = "second", 3rd = "third", and most others add "-th" (fourth, tenth, twentieth, hundredth).
Common Use Cases for Number to Words Converter
💰Check Writing & Banking
When writing checks, enter the numeric amount in the small box (e.g., "$1,234.56") and write the word form on the line ("one thousand two hundred thirty-four dollars and fifty-six cents"). The written amount legally takes precedence if the numbers don't match, protecting against altered checks.
After converting amounts, use Character Counter to ensure your written amount fits on the check line.
📄Legal & Financial Documents
Contracts, promissory notes, loan agreements, and purchase orders require amounts in both numeric and written form: "The buyer agrees to pay $500,000 (five hundred thousand dollars)". This dual format prevents fraud and eliminates interpretation disputes.
Format legal documents with Case Converter for consistent capitalization.
💌Formal Invitations & Announcements
Wedding invitations traditionally spell out dates and times: "Saturday, the twenty-first of June, two thousand twenty-four at half past six o'clock". Anniversary announcements, graduation invitations, and formal event programs follow this elegant convention.
Polish invitation text with Trim Lines to remove extra spaces.
📊Business Reports & Presentations
Executive summaries, shareholder letters, and press releases often spell out major financial figures for emphasis: "Revenue reached $2.5 billion (two point five billion dollars), a 15% increase year-over-year."
Format reports with Find & Replace for consistent number formatting.