12 in Roman Numerals

12 in Roman numerals is
XII
10 + 1 + 1 = 12
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The number 12 is written XII in Roman numerals. Reading left to right and adding the values gives 10 + 1 + 1 = 12. Roman numerals use seven letters: I (1), V (5), X (10), L (50), C (100), D (500) and M (1000). A smaller letter before a larger one means subtraction (IV = 4, IX = 9, XL = 40, XC = 90, CD = 400, CM = 900).

XII in names

  • Pius XII, pope of the Catholic Church from 1939 to 1958. Wikidata
  • Leo XII, Pope of the Catholic Church from 1823 to 1829. Wikidata
  • Clement XII, pope of the Catholic Church from 1730 to 1740. Wikidata
  • John XII, Head of the Catholic Church from 955 to 964. Wikidata
  • Louis XII of France, King of France from 1498 to 1515. Wikidata
  • Innocent XII, pope of the Catholic Church from 1691 to 1700. Wikidata
  • Benedict XII, pope of the Catholic Church 1334–1342. Wikidata
  • Gregory XII, pope of the Catholic Church from 1406 to 1415. Wikidata
  • Alfonso XII of Spain, king of Spain from 1874 to 1885. Wikidata
  • Super Bowl XII, played on 15 January 1978. Wikidata

Popes, monarchs, films and Super Bowls whose name carries XII. Source: Wikidata, retrieved 11 October 2026.

Nearby & popular values

10 = X11 = XI13 = XIII14 = XIV
4 = IV9 = IX14 = XIV40 = XL49 = XLIX90 = XC99 = XCIX100 = C500 = D1000 = M1984 = MCMLXXXIV1990 = MCMXC1999 = MCMXCIX2000 = MM2024 = MMXXIV2025 = MMXXV2026 = MMXXVI3999 = MMMCMXCIX

Frequently asked

What is 12 in Roman numerals?

12 in Roman numerals is XII.

How is 12 written in Roman numerals?

12 is written XII, which breaks down as 10 + 1 + 1 = 12.

Is there a Roman numeral for zero?

No. The Roman system has no symbol for zero, which is one reason it was eventually replaced for calculation.