24 in Words
How do you write 24 in words?
The number 24 is written twenty-four in words. As an ordinal it is twenty-fourth, and on a check you would write Twenty-four and 00/100.
Last updated 24 August 2026
Other ways to write it
| Cardinal | twenty-four |
|---|---|
| Ordinal | twenty-fourth |
| Currency | twenty-four dollars |
| Check format | Twenty-four and 00/100 |
How 24 is written
24 is the sum of its place values, 20 + 4, and is written twenty-four.
Its ordinal form is twenty-fourth — only the final element takes the ordinal ending — and on a check the amount line reads "Twenty-four and 00/100", where 00/100 stands for zero cents.
The hyphen in twenty-four is required: English hyphenates every compound number from twenty-one to ninety-nine.
Its Roman numeral XXIV uses subtractive notation: IV means 4, written as I before V instead of repeating I.
For house-style rules on spelling out numbers, see the Chicago Manual of Style.
Facts about 24
- 24 is an even number.
- It is not a prime number.
- Digit sum: 6.
- Roman numerals: XXIV.
- Binary: 11000.
- Hexadecimal: 18.
| Digit | Place |
|---|---|
| 2 | tens |
| 4 | ones |
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Frequently asked questions
How do you write 24 in words?
24 in words is "twenty-four".
How do you spell 24?
24 is spelled "twenty-four".
How do you write 24 on a check?
On a check, write "Twenty-four and 00/100".