518 in Words
How do you write 518 in words?
The number 518 is written five hundred eighteen in words. As an ordinal it is five hundred eighteenth, and on a check you would write Five hundred eighteen and 00/100.
Last updated 19 June 2026
Other ways to write it
| Cardinal | five hundred eighteen |
|---|---|
| Ordinal | five hundred eighteenth |
| Currency | five hundred eighteen dollars |
| Check format | Five hundred eighteen and 00/100 |
How number-to-words spelling works
A cardinal number names a quantity (five hundred eighteen), while an ordinal names a position (five hundred eighteenth). 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 518
- 518 is an even number.
- It is not a prime number.
- Digit sum: 14.
- Roman numerals: DXVIII.
- Binary: 1000000110.
- Hexadecimal: 206.
| Digit | Place |
|---|---|
| 5 | hundreds |
| 1 | tens |
| 8 | ones |
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Frequently asked questions
How do you write 518 in words?
518 in words is "five hundred eighteen".
How do you spell 518?
518 is spelled "five hundred eighteen".
How do you write 518 on a check?
On a check, write "Five hundred eighteen and 00/100".