Roman Numeral Converter

Convert between Arabic and Roman numerals

Enter an Arabic number (1–3999) or a Roman numeral to instantly convert between the two systems.

Arabic → RomanRoman → Arabic1–3999
Result
MMXXIV

Valid range: 1 – 3999

Converter
Standard subtractive notation is used (IV = 4, IX = 9, XL = 40, etc.)
Examples
Reference

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