11 in Roman Numerals

11 in Roman numeralsXI
Breakdown
X = 10, I = 1
Characters
2

11 = XI

11 is written XI in Roman numerals.

Step by step

  1. Split 11 into place values: 10 + 1.
  2. 10 = X
  3. 1 = I
  4. Join them from largest to smallest: XI.

To read XI back, go from left to right and add each value, treating a smaller symbol before a larger one as a single subtracted pair: X (10) + I (1) = 11.

Details

Symbols used
X = 10, I = 1
Roman numeral
XI
Breakdown
X + I
Number of symbols
2
Lowercase
xi
Uses subtraction
No

How it works

Roman numerals combine seven symbols — I (1), V (5), X (10), L (50), C (100), D (500) and M (1,000). Write each place value of the number separately, from thousands down to ones, and join the results. Six subtractive pairs replace four repeated symbols: IV (4), IX (9), XL (40), XC (90), CD (400) and CM (900). No symbol appears more than three times in a row.

Nearby values

NumberRoman numeral
7VII
8VIII
9IX
10X
11XI
12XII
13XIII
14XIV
15XV

Related conversions

Frequently asked questions

What is 11 in Roman numerals?

XI.

How do you write 11 in Roman numerals?

Break it into X (10) + I (1) and write XI.

What number is XI?

XI = 11.

What is the largest standard Roman numeral?

3,999, written MMMCMXCIX.

Related tools