42 in Words
How do you write 42 in words?
The number 42 is written forty two in words. As an ordinal it is forty second, and on a check you would write Forty two and 00/100.
Last updated 19 June 2026
Other ways to write it
| Cardinal | forty two |
|---|---|
| Ordinal | forty second |
| Currency | forty two dollars |
| Check format | Forty two and 00/100 |
How number-to-words spelling works
A cardinal number names a quantity (forty two), while an ordinal names a position (forty second). English hyphenates compound numbers from twenty-one to ninety-nine and groups digits into thousands, millions, and billions.
For house-style rules on spelling out numbers, see the Chicago Manual of Style, or read our guide to spelling numbers in words.
Facts about 42
- 42 is an even number.
- It is not a prime number.
- Digit sum: 6.
- Roman numerals: XLII.
- Binary: 101010.
- Hexadecimal: 2A.
| Digit | Place |
|---|---|
| 4 | tens |
| 2 | ones |
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Frequently asked questions
How do you write 42 in words?
42 in words is "forty two".
How do you spell 42?
42 is spelled "forty two".
How do you write 42 on a check?
On a check, write "Forty two and 00/100".