11 in Roman Numerals
11 in Roman numerals is XI. It is built from two parts: 10 + 1 = X + I. Read it from left to right and add the values to get 11. Copy it below, see why it is written this way, and check the numbers before and after. The converter handles any number from 1 to 3,999.
11 in Roman numerals is XI.
11 in Roman numerals: the breakdown
| Place value | Numeral | Value |
|---|---|---|
| 10 | X | 10 |
| 1 | I | 1 |
| Total | XI | 11 |
10 plus 1 is 11, so X followed by I is XI.
How to read XI
- X is 10.
- I is 1.
- Add 10 + 1 to get 11.
The numbers around 11
Facts about 11
- 11 is an odd number.
- 11 is a prime number: it can be divided only by 1 and itself.
- The digits of 11 add up to 2.
- XI is 2 letters long. It uses the symbols X and I.
Convert another number
11 = 10 + 1 = X + I
What number is XI?
XI is the number 11. Reading it from left to right, X is 10 and I is 1, which adds up to 11.
Questions and answers
What is 11 in Roman numerals?
11 in Roman numerals is XI. It is made of two parts: 10 + 1 = X + I. Read XI from left to right, add the parts, and you get 11. Use the converter on this page to check any other number from 1 to 3,999.
How do you write 11 in Roman numerals?
Split 11 into its place values, write each one in Roman numerals, and join them from largest to smallest. For 11 that is 10 + 1, which is X + I, so the answer is XI. Check that no letter repeats more than three times in a row.
What number is XI?
XI is 11. Read it in place-value parts from left to right: X is 10, I is 1. Add the parts to get 11. Letters after a larger or equal letter are added, and a smaller letter before a larger one is subtracted. You can also type XI into the converter to read the number back.