11 = XI
11 in Roman numerals is XI.
Eleven written with the letters X I.
11 in words: Eleven
Eleven in Roman numerals is XI, simply X (10) followed by I (1). There is no subtraction to worry about: you take ten and add one, reading left to right. It is the first numeral past ten, and the pattern it starts (XII, XIII and so on) runs all the way up the teens.
You meet XI most often on a clock or watch dial, where it sits just before XII at the top, and in the numbering of monarchs, popes and sequels. Because it is so short, XI is one of the numerals worth knowing on sight rather than working out each time.
How 11 breaks down
Reading XI from left to right, each group is added together to reach 11:
| Group | Value | Place |
|---|---|---|
| X | 10 | tens |
| I | 1 | ones |
| XI | 11 | total |
Frequently asked questions
What is 11 in Roman numerals?
11 in Roman numerals is XI.
How do you write 11 in words?
11 is written "Eleven" in English.
What number comes before XI?
The number before XI is 10, written X in Roman numerals.
What number comes after XI?
The number after XI is 12, written XII in Roman numerals.
Related numbers
Last updated July 22, 2026. Reviewed for accuracy against the standard rules for Roman numerals.