Roman Numeral Converter

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Convert numbers to Roman numerals and back (1–3999).

Enter a number (1–3999)

Quick reference: I=1 · V=5 · X=10 · L=50 · C=100 · D=500 · M=1000

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About Roman Numeral Converter

Enter a number between 1 and 3999 to get its Roman numeral equivalent, or enter a Roman numeral to convert it back to a decimal number. Includes a quick reference guide.

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