Number to words converter
Convert any number to its English word form. Works for integers, decimals, and numbers up to the trillions.
Number
How numbers are written in words
English uses a grouping system: ones, tens, hundreds, then thousands, millions, billions, trillions. Each group of three digits gets its own period name.
Examples
42 → forty-two
1,500 → one thousand, five hundred
2,000,000 → two million
123,456,789 → one hundred twenty-three million, four hundred fifty-six thousand, seven hundred eighty-nine
Common uses
Writing checks, legal documents, formal writing, and accessibility (screen readers read numbers as words).
Related calculators