How to use it
- Numbers from 21 to 99 are hyphenated (twenty-one). The British style adds “and” after the hundreds (one hundred and five); the American style leaves it out.
- Hundred, thousand, million and billion take no plural after a number: two hundred, five million.
- Decimals are read digit by digit after “point”: 12.05 → twelve point zero five.
Worked example
1500 → One thousand five hundred.
1005 (British) → One thousand and five.
Frequently asked questions
Should I use “and” in numbers?
In British English, yes: “one hundred and five”. In American English it is usually left out: “one hundred five”. Both are correct; pick the style you need.
How do I write an amount on a cheque?
Copy the words and add the currency, e.g. “One thousand five hundred dollars”. Many people add “only” at the end so nothing can be added.
Is “two hundred” or “two hundreds” correct?
“Two hundred” — hundred, thousand and million have no plural after a number in English.
What is the largest number supported?
Up to 999 trillion (15 digits), with up to 6 decimal places.