318 in Words
How do you write 318 in words?
The number 318 is written three hundred eighteen in words. As an ordinal it is three hundred eighteenth, and on a check you would write Three hundred eighteen and 00/100.
Last updated 24 August 2026
Other ways to write it
| Cardinal | three hundred eighteen |
|---|---|
| Ordinal | three hundred eighteenth |
| Currency | three hundred eighteen dollars |
| Check format | Three hundred eighteen and 00/100 |
How 318 is written
318 is the sum of its place values, 300 + 10 + 8, and is written three hundred eighteen.
Its ordinal form is three hundred eighteenth — only the final element takes the ordinal ending — and on a check the amount line reads "Three hundred eighteen and 00/100", where 00/100 stands for zero cents.
The last part is not built from its digits: English names 10 to 19 with single irregular words, so this is eighteen, never ten eight.
For house-style rules on spelling out numbers, see the Chicago Manual of Style.
Facts about 318
- 318 is an even number.
- It is not a prime number.
- Digit sum: 12.
- Roman numerals: CCCXVIII.
- Binary: 100111110.
- Hexadecimal: 13E.
| Digit | Place |
|---|---|
| 3 | hundreds |
| 1 | tens |
| 8 | ones |
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Frequently asked questions
How do you write 318 in words?
318 in words is "three hundred eighteen".
How do you spell 318?
318 is spelled "three hundred eighteen".
How do you write 318 on a check?
On a check, write "Three hundred eighteen and 00/100".