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Roman NumeralConverter
Convert numbers to Roman numerals and back, in either direction.
Roman Numeral Converter
Convert numbers to Roman numerals and back, both ways.
Roman numeral
MCMXCIV
Need help with reading legal documents, certificates or historical financial records using Roman numerals?
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Book a Free ConsultationFrequently Asked Questions
What is the highest number this converter supports?
Standard Roman numerals (using single letters I, V, X, L, C, D, M) represent numbers from 1 to 3,999. Numbers outside that range aren't supported by the classical notation.
How do I convert a number to Roman numerals?
Enter the number in "Number → Roman" mode. For example, 1994 converts to MCMXCIV using the standard subtractive notation.
How do I convert a Roman numeral back to a number?
Switch to "Roman → Number" mode and type the Roman numeral, using only the letters I, V, X, L, C, D, M.
Where are Roman numerals commonly used today?
Clock faces, book chapter numbers, movie sequel titles, monarch and pope names (like Elizabeth II), and some legal or historical document numbering.
Is this calculator free to use?
Yes, completely free with no sign-up or limits.
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