Roman Numeral Converter

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Enter the input to calculate

Roman Numeral Converter

Convert any number (1-3999) to Roman numerals, or decode Roman numerals back to numbers.

How to Use

  • Choose conversion direction
  • Enter your input
  • Click Convert to see the result
Education 2 views Updated: Jul 2026

Formula

I=1,V=5,X=10,L=50,C=100,D=500,M=1000

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