4 in Words
How do you write 4 in words?
The number 4 is written four in words. As an ordinal it is fourth, and on a check you would write Four and 00/100.
Last updated 24 August 2026
Other ways to write it
| Cardinal | four |
|---|---|
| Ordinal | fourth |
| Currency | four dollars |
| Check format | Four and 00/100 |
How 4 is written
4 fills only the ones place, which is why its name, four, is a single word.
Its ordinal form is fourth — only the final element takes the ordinal ending — and on a check the amount line reads "Four and 00/100", where 00/100 stands for zero cents.
4 is 2 to the power of 2, so its binary form is a 1 followed by 2 zeros (100) and its hexadecimal form is 4.
For house-style rules on spelling out numbers, see the Chicago Manual of Style.
Facts about 4
- 4 is an even number.
- It is not a prime number.
- Digit sum: 4.
- Roman numerals: IV.
- Binary: 100.
- Hexadecimal: 4.
| Digit | Place |
|---|---|
| 4 | ones |
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Frequently asked questions
How do you write 4 in words?
4 in words is "four".
How do you spell 4?
4 is spelled "four".
How do you write 4 on a check?
On a check, write "Four and 00/100".