The Roman Numeral Converter is a utility that translates between standard Arabic numbers and Roman numerals, supporting both encoding (numbers to Roman numerals) and decoding (Roman numerals back to numbers). It follows the classical rules of Roman numeral construction, combining symbols such as I, V, X, L, C, D, and M to represent values in a subtractive and additive system.
Users can input either a whole number or a Roman numeral string, and the tool will automatically determine the correct conversion direction. It applies standard Roman numeral rules, including subtractive notation (such as IV for 4 and IX for 9) and repetition limits for symbols, ensuring accurate and historically consistent output.
For example, the number 2026 converts to MMXXVI, while the Roman numeral XIV decodes to 14. This makes the tool useful for education, historical referencing, puzzle design, and software applications that require conversion between numeral systems.