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Roman Numeral Converter
Convert numbers and Roman numerals.
Both directions, 1 to 3999. Free, no signup.
Frequently Asked Questions
This tool supports 1 to 3999 (MMMCMXCIX), the standard range using only the letters I, V, X, L, C, D, M.
A smaller numeral placed before a larger one is subtracted, such as IV (4) or IX (9), instead of writing four or nine identical symbols in a row.