🏛️ Bidirectional🔢 1–3999✅ Validated
Roman Numeral Converter
Convert any number between 1 and 3,999 to Roman numerals — or type Roman numerals to get the Arabic equivalent. Both directions work in real time.
QUICK ANSWER
2025 = MMXXV. The 7 symbols: I=1, V=5, X=10, L=50, C=100, D=500, M=1000. Subtraction rules: IV=4, IX=9, XL=40, XC=90, CD=400, CM=900. The system covers 1–3,999; there is no Roman numeral for zero.
MMXXV=2025
Common examples
Roman Numeral Reference Chart
| Symbol | Value | Symbol | Value |
|---|---|---|---|
| I | 1 | L | 50 |
| IV | 4 | XC | 90 |
| V | 5 | C | 100 |
| IX | 9 | CD | 400 |
| X | 10 | D | 500 |
| XL | 40 | CM | 900 |
| M | 1000 |
Where Roman Numerals Are Used Around the World
- Clock faces: The majority of analogue clocks worldwide use Roman numerals I–XII. Notably, most use IIII rather than IV for the number 4 (see FAQ below).
- USA — Super Bowl: The NFL names its championship game with Roman numerals (Super Bowl LVIII in 2024). It famously skipped Roman numerals for Super Bowl 50 to avoid "Super Bowl L" looking odd.
- Film & TV: Movie sequels (Rocky II, Godfather Part II), James Bond films, and Star Wars episodes. Copyright years on film credits have used Roman numerals since the 1920s (partly to obscure the production year).
- Monarchy & Papacy: Monarchs are numbered: King Charles III (UK), Emperor Naruhito (Japan, using Arabic numerals, but styled after Roman tradition). Popes have used Roman numerals since the early church.
- Italy & Catholic Europe: Roman numerals appear on centuries-old church inscriptions, monuments, and street plaques throughout Italy, Spain, France, and Portugal far more than in Northern Europe or North America.
- Olympics: The Olympic Games traditionally use Roman numerals for their edition number (e.g. the XXXIII Olympiad, Paris 2024).
- Legal documents: Legal codes, constitutions, and books worldwide use Roman numerals for section, chapter, and appendix numbering (e.g. Article IV of the US Constitution).