🏛️ Roman Numeral Converter

Convert between Arabic numbers and Roman numerals instantly. Also check validity and see breakdown.

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Roman Numeral
MMXXIV
Arabic Number
2024

Roman Numeral Table

SymbolValueSymbolValue
I1L50
IV4XC90
V5C100
IX9CD400
X10D500
XL40CM900
L50M1000

Roman Numeral Rules

  • Symbols are written from largest to smallest, left to right
  • A smaller symbol before a larger one means subtraction (IV = 4, IX = 9)
  • Only I, X, C, and M can be repeated (up to 3 times in sequence)
  • V, L, and D are never repeated
  • Traditional Roman numerals go up to 3,999 (MMMCMXCIX)