XI Roman Numeral: What Number Is XI?
Numbers and numerals are detected as you type. Enter copies, Alt+S swaps.
XI is 11 (eleven). It is one X and one I, all added: 10 + 1 = 11.
Reading XI letter by letter
XI splits by place into X (ten) and I (one).
| Letter | Value | Step | Total |
|---|---|---|---|
| X | 10 | start | 10 |
| I | 1 | add | 11 |
Why XI is valid
- Highest first
- X and I come in falling order, so every letter is added.
Easy to confuse with XI
IX, the same letters swapped, is 9 (IX roman numeral).
XI in names, titles and systems
- ReignPope Pius XI1922–1939Wikipedia
- Super BowlSuper Bowl XIJanuary 9, 1977PasadenaRaiders (then the Oakland Raiders) beat Minnesota Vikings 32–14Wikipedia
- TitleFinal Fantasy XI2002Wikipedia
- OlympicsGames of the XI Olympiad1936BerlinWikipedia
- EventWrestleMania XI1995Wikipedia
- Anatomycranial nerve XIaccessory nerveWikipedia
11 in Roman numerals · Roman numeral rules
