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Roman Numeral Converter

Convert numbers to Roman numerals and back.

What Is a Roman Numeral Converter?

The Roman Numeral Converter converts Arabic numbers into Roman numerals and Roman numerals back into numbers. Historical dates, clock faces, movie sequels, and classic document numbering all use Roman numerals, and this converter handles them instantly.

How to Use This Roman Numeral Converter

  1. 1
    Enter a numberType an Arabic number (1–3999) or a Roman numeral like MMXXIV.
  2. 2
    Convert automaticallyThe tool detects the input type and converts it.
  3. 3
    Copy the resultThe converted value appears instantly with a one-click copy.

Frequently Asked Questions

2026 is written MMXXVI (M=1000, MM=2000, XX=20, VI=6).
Modern standards write it as IV, though clocks often still use the older IIII.
The tool supports 1 to 3999, the range expressible with standard Roman numeral symbols.

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