Utility & Converter
Roman Numeral Converter
Convert numbers to Roman numerals and Roman numerals back to numbers instantly.
MMXXVI
How to use the Roman Numeral Converter
- Choose your conversion mode: "Number to Roman" or "Roman to Number".
- Enter an Arabic integer (1 to 3999) or a Roman numeral string (e.g. MMXXVI).
- View the instantly converted result and click copy to save it to your clipboard.
What are Roman Numerals?
Roman numerals originated in ancient Rome using combinations of letters from the Latin alphabet (I, V, X, L, C, D, M) to signify values. They remain widely used today for clock faces, outline lists, publication copyrights, and event titles.
Frequently asked questions
What is the maximum number supported?
Standard Roman numeral notation supports numbers up to 3999 (MMMCMXCIX).
Is zero (0) supported in Roman numerals?
No, ancient Roman numerals did not have a symbol representing zero.
Is my input sent to a server?
No, all Roman numeral conversions take place 100% inside your local browser.