42 in Roman Numerals
The number 42 is written XLII in Roman numerals. Reading left to right and adding the values gives 40 + 1 + 1 = 42. 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).
XLII in names
- Super Bowl XLII, played on 3 February 2008. Wikidata
Popes, monarchs, films and Super Bowls whose name carries XLII. Source: Wikidata, retrieved 11 October 2026.
Nearby & popular values
Frequently asked
What is 42 in Roman numerals?
42 in Roman numerals is XLII.
How is 42 written in Roman numerals?
42 is written XLII, which breaks down as 40 + 1 + 1 = 42.
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.