Roman Numeral Converter — Free Online Tool

Convert numbers to Roman numerals and Roman numerals back to numbers. Useful for clocks, chapters and dates.

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How to use Roman Numeral Converter

Enter a number or Roman numeral.
Pick the direction.
Copy the result.

Frequently asked questions

What is the biggest supported number?

Up to 3999, the standard limit for classic Roman numerals.

Your privacy is protected

This tool runs entirely inside your browser. No file, text or number you enter is ever sent to our servers, stored, or shared. Close the tab and everything is gone.

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