Convertisseur de Chiffres Romains

Convertissez les nombres entre chiffres romains et arabes.

Thousands Digit

2

Hundreds Digit0
Tens Digit2
Ones Digit4
Voir la formule →

Formule

Roman Numeral Converter

Roman Numeral Chart

DecimalRoman 1I 5V 10X 50L 100C 500D 1000M

Digit Mapping

  • Thousands: 1=M, 2=MM, 3=MMM
  • Hundreds: 1=C, 2=CC, 3=CCC, 4=CD, 5=D, 6=DC, 7=DCC, 8=DCCC, 9=CM
  • Tens: 1=X, 2=XX, 3=XXX, 4=XL, 5=L, 6=LX, 7=LXX, 8=LXXX, 9=XC
  • Ones: 1=I, 2=II, 3=III, 4=IV, 5=V, 6=VI, 7=VII, 8=VIII, 9=IX

    • Break down your number into digits and look up each group.

    Exemple Résolu

    Convert 2024 to Roman numerals.

    1. 01Thousands = 2 → MM
    2. 02Hundreds = 0 → (nothing)
    3. 03Tens = 2 → XX
    4. 04Ones = 4 → IV
    5. 05Result: MMXXIV

    Questions Fréquentes

    What is the largest number in Roman numerals?

    Standard Roman numerals can represent numbers from 1 to 3,999 (MMMCMXCIX). There is no standard symbol for 5,000 or higher in basic Roman numeral notation.

    How do subtractive pairs work in Roman numerals?

    When a smaller numeral appears before a larger one, you subtract: IV=4, IX=9, XL=40, XC=90, CD=400, CM=900.

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