Free Roman Numeral Converter
Convert numbers to Roman numerals and decode Roman numerals back to numbers. Supports all values from 1 to 3999.
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🔄 Roman Numeral Converter
Frequently Asked Questions
Roman numerals traditionally represent numbers from 1 to 3999. Numbers outside this range cannot be represented in standard Roman numeral notation.
Roman numerals use subtractive notation for some values: IV=4, IX=9, XL=40, XC=90, CD=400, CM=900. A smaller value before a larger one means subtract.