What number range is supported?

Integers from negative quintillion to positive quintillion (about ±10^18) are supported. This covers thousand, million, billion, trillion, and quadrillion scale groups using the short-scale naming common in English.

Does it use short scale or long scale?

It uses the short scale, where a billion is a thousand million (10^9). This is standard in the United States and modern British and international English usage.

Zero is written simply as the word zero. Negative numbers are prefixed with the word negative, for example negative forty-two.

Are decimals or fractions supported?

No, this tool converts whole numbers only. For amounts with cents, convert the whole part here and write the fractional part separately, such as the cents on a cheque.

Number to Words Converter

This converter turns a whole number into its written English words — useful for writing cheques, legal documents, or anywhere a number must appear in words as well as digits. It supports values up to a quintillion and handles negatives and zero correctly.

How it works

The number is split into three-digit groups from the right. Each group is spelled out (hundreds, then tens and units) and given its scale name:

1 234 567  →  [1] million  [234] thousand  [567]
           →  "one million two hundred thirty-four thousand five hundred sixty-seven"

Tens from 21 to 99 that have a non-zero unit are hyphenated (for example forty-two), matching standard English style. Groups that are entirely zero are skipped, and zero is the special case for the number 0.

Example and tips

2026 becomes two thousand twenty-six, and -1000000 becomes negative one million. The short-scale system is used throughout, so a billion means 10^9. For monetary amounts, convert the pounds or dollars here and append the pence or cents yourself — for example “one hundred and 50/100”.