43 in Roman Numerals
The number 43 is written XLIII in Roman numerals. Reading left to right and adding the values gives 40 + 1 + 1 + 1 = 43. 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).
XLIII in names
- Super Bowl XLIII, played on 1 February 2009. Wikidata
Popes, monarchs, films and Super Bowls whose name carries XLIII. Source: Wikidata, retrieved 11 October 2026.
Nearby & popular values
Frequently asked
What is 43 in Roman numerals?
43 in Roman numerals is XLIII.
How is 43 written in Roman numerals?
43 is written XLIII, which breaks down as 40 + 1 + 1 + 1 = 43.
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.