10 in Roman Numerals

10 in Roman numerals is
X
10 = 10
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The number 10 is written X in Roman numerals. Reading left to right and adding the values gives 10 = 10. 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).

X in names

  • Pius X, Pope of the Catholic Church from 1903 to 1914, saint. Wikidata
  • Leo X, pope from 1513 to 1521 (1475-1521). Wikidata
  • Charles X of France, King of France and Navarre from 1824 to 1830 (1757–1836). Wikidata
  • Innocent X, pope from 1644 to 1655. Wikidata
  • Clement X, pope of the Catholic Church from 1670 to 1676 (1590-1676). Wikidata
  • Alfonso X of Castile and Leon, King of Castile from 1252 to 1284. Wikidata
  • John X, 10th-century pope. Wikidata
  • Frederik X of Denmark, King of Denmark since 2024. Wikidata
  • Gregory X, Pope from 1271 to 1276. Wikidata
  • Louis X of France, King of France from 1314 to 1316. Wikidata
  • Christian X of Denmark, King of Denmark (1912–1947) and Iceland (1918–1944). Wikidata
  • Fast X, 2023 film directed by Louis Leterrier. Wikidata

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

Frequently asked

What is 10 in Roman numerals?

10 in Roman numerals is X.

How is 10 written in Roman numerals?

10 is written X, which breaks down as 10 = 10.

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.