Understanding Number to Words Conversion
Writing out numbers in words is a standard practice in legal and financial documents to prevent fraud and ensure accuracy. It is also useful for creative writing checks to avoid inconsistencies in spelling.
How the Algorithm Works
Our tool breaks the number into chunks of three digits (thousands, millions, billions) and converts each chunk individually.
- Ones (1-19): Unique words like "One", "Twelve", "Nineteen".
- Tens (20-90): Suffixes like "Twenty", "Thirty", "Eighty". Combined with ones (e.g., "Twenty-One").
- Hundreds (100-900): "One Hundred", "Two Hundred".
- Thousands & Up: The chunks are combined: "One Million, Two Hundred Thousand".
Examples
- 100 → One Hundred
- 1,234 → One Thousand Two Hundred Thirty-Four
- 10,005 → Ten Thousand Five
- 1,000,000 → One Million
- 123.45 → One Hundred Twenty-Three Point Four Five
Frequently Asked Questions (FAQ)
Does this tool handle decimals?
Yes. The decimal portion is separated by the word "Point" followed by the digits (e.g., "Point Five"). This is standard for check writing when cents are included (though currency is not added by default).
What is the largest number supported?
This tool supports numbers up to Trillions (999,999,999,999,999). This covers virtually all practical financial and legal scenarios.
Why use "and" vs hyphens?
There is no strict rule. In American English, "One Hundred Twenty-Three" is very common. In British English, "One Hundred and Twenty-Three" is often used. This tool omits the "and" for a cleaner, standard US look.