罗马数字转换器 — 公式

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.

    计算示例

    Convert 2024 to Roman numerals.

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