11 in Words
How do you write 11 in words?
The number 11 is written eleven in words. As an ordinal it is eleventh, and on a check you would write Eleven and 00/100.
Last updated 24 August 2026
Other ways to write it
| Cardinal | eleven |
|---|---|
| Ordinal | eleventh |
| Currency | eleven dollars |
| Check format | Eleven and 00/100 |
How 11 is written
11 is the sum of its place values, 10 + 1, and is written eleven.
Its ordinal form is eleventh — only the final element takes the ordinal ending — and on a check the amount line reads "Eleven 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 eleven, never ten one.
For house-style rules on spelling out numbers, see the Chicago Manual of Style.
Facts about 11
- 11 is an odd number.
- It is a prime number.
- Digit sum: 2.
- Roman numerals: XI.
- Binary: 1011.
- Hexadecimal: B.
| Digit | Place |
|---|---|
| 1 | tens |
| 1 | ones |
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Frequently asked questions
How do you write 11 in words?
11 in words is "eleven".
How do you spell 11?
11 is spelled "eleven".
How do you write 11 on a check?
On a check, write "Eleven and 00/100".