Number to Words Converter

Convert numbers to words and words to numbers instantly. Free online tool with currency, ordinal, and decimal support.

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Words

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Common Number Conversions

Basic Numbers

1one
10ten
100one hundred
1,000one thousand
10,000ten thousand
100,000one hundred thousand
1,000,000one million

Ordinal Numbers

1stfirst
2ndsecond
3rdthird
4thfourth
5thfifth
10thtenth
100thone hundredth

Large Numbers

106million
109billion
1012trillion
1015quadrillion
1018quintillion

Number to Words Converter Uses

Converting numbers to words is essential for many professional and personal applications. This free online tool helps you spell out numbers accurately and instantly.

Common Use Cases

  • Writing checks: Banks require the amount to be written in words to prevent fraud and ensure accuracy.
  • Legal documents: Contracts, agreements, and legal papers often require numbers to be spelled out for clarity.
  • Academic writing: Style guides like APA and MLA have specific rules for when to spell out numbers vs. using digits.
  • Financial reports: Annual reports and financial statements often include numbers written as words for emphasis.
  • Invitations: Formal invitations typically spell out dates, times, and addresses in words.
  • Educational purposes: Teaching children to read and write numbers in word form.

Number Writing Rules

  • Small numbers: Generally, spell out numbers one through nine, and use digits for 10 and above.
  • Beginning of sentence: Always spell out numbers that begin a sentence.
  • Round numbers: Large round numbers can be written as "5 million" rather than "5,000,000".
  • Consistency: Be consistent within a documentβ€”don't mix styles.

Frequently Asked Questions

How do I write large numbers in words?

Large numbers are written by grouping digits into sets of three from right to left. For example, 1,234,567 is "one million two hundred thirty-four thousand five hundred sixty-seven". Use commas to separate groups when writing digits, and use words like "thousand", "million", "billion" for scale.

When should I spell out numbers vs use digits?

Common rules: Spell out numbers one through nine, use digits for 10 and above. Always spell out numbers at the start of a sentence. In technical or scientific writing, use digits more liberally. For formal documents like checks or contracts, always write out the full amount in words.

How do I write decimals in words?

Decimals are written using "point" followed by each digit spelled individually. For example, 3.14 is "three point one four". For currency, use "and" for cents: $25.50 is "twenty-five dollars and fifty cents".

What's the difference between cardinal and ordinal numbers?

Cardinal numbers (one, two, three) indicate quantity or count. Ordinal numbers (first, second, third) indicate position or order. Use ordinal numbers for dates (January 1st), rankings (3rd place), and sequences (the fifth chapter).

How do I write negative numbers in words?

Negative numbers are written with "negative" or "minus" before the number. For example, -42 is "negative forty-two" or "minus forty-two". In financial contexts, negative numbers might be called "in the red" or written in parentheses.