Roman Numeral Converter
Convert numbers to Roman numerals and back
Result appears here
Click ⇄ to convert Roman numeral → Number
How to use Roman Numeral Converter
Free Roman numeral converter. Convert any number from 1 to 3999 to Roman numerals, or convert Roman numerals back to numbers. Bidirectional converter.
Frequently asked questions
Standard Roman numerals go up to 3999 (MMMCMXCIX). Numbers 4000 and above require non-standard extensions.